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Kirpalani H, Bell EF, Hintz SR, Tan S, Schmidt B, Chaudhary AS, Johnson KJ, Crawford MM, Newman JE, Vohr BR, Carlo WA, D'Angio CT, Kennedy KA, Ohls RK, Poindexter BB, Schibler K, Whyte RK, Widness JA, Zupancic JAF, Wyckoff MH, Truog WE, Walsh MC, Chock VY, Laptook AR, Sokol GM, Yoder BA, Patel RM, Cotten CM, Carmen MF, Devaskar U, Chawla S, Seabrook R, Higgins RD, Das A. Higher or Lower Hemoglobin Transfusion Thresholds for Preterm Infants. N Engl J Med 2020; 383:2639-2651. [PMID: 33382931 PMCID: PMC8487591 DOI: 10.1056/nejmoa2020248] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Limited data suggest that higher hemoglobin thresholds for red-cell transfusions may reduce the risk of cognitive delay among extremely-low-birth-weight infants with anemia. METHODS We performed an open, multicenter trial in which infants with a birth weight of 1000 g or less and a gestational age between 22 weeks 0 days and 28 weeks 6 days were randomly assigned within 48 hours after delivery to receive red-cell transfusions at higher or lower hemoglobin thresholds until 36 weeks of postmenstrual age or discharge, whichever occurred first. The primary outcome was a composite of death or neurodevelopmental impairment (cognitive delay, cerebral palsy, or hearing or vision loss) at 22 to 26 months of age, corrected for prematurity. RESULTS A total of 1824 infants (mean birth weight, 756 g; mean gestational age, 25.9 weeks) underwent randomization. There was a between-group difference of 1.9 g per deciliter (19 g per liter) in the pretransfusion mean hemoglobin levels throughout the treatment period. Primary outcome data were available for 1692 infants (92.8%). Of 845 infants in the higher-threshold group, 423 (50.1%) died or survived with neurodevelopmental impairment, as compared with 422 of 847 infants (49.8%) in the lower-threshold group (relative risk adjusted for birth-weight stratum and center, 1.00; 95% confidence interval [CI], 0.92 to 1.10; P = 0.93). At 2 years, the higher- and lower-threshold groups had similar incidences of death (16.2% and 15.0%, respectively) and neurodevelopmental impairment (39.6% and 40.3%, respectively). At discharge from the hospital, the incidences of survival without severe complications were 28.5% and 30.9%, respectively. Serious adverse events occurred in 22.7% and 21.7%, respectively. CONCLUSIONS In extremely-low-birth-weight infants, a higher hemoglobin threshold for red-cell transfusion did not improve survival without neurodevelopmental impairment at 22 to 26 months of age, corrected for prematurity. (Funded by the National Heart, Lung, and Blood Institute and others; TOP ClinicalTrials.gov number, NCT01702805.).
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MESH Headings
- Algorithms
- Anemia/blood
- Anemia/mortality
- Anemia/therapy
- Cerebral Palsy/prevention & control
- Cognition Disorders/prevention & control
- Erythrocyte Transfusion/adverse effects
- Hearing Loss/prevention & control
- Hemoglobins/analysis
- Humans
- Infant, Extremely Low Birth Weight/blood
- Infant, Extremely Premature/blood
- Infant, Newborn/blood
- Infant, Premature/blood
- Infant, Premature, Diseases/blood
- Infant, Premature, Diseases/mortality
- Infant, Premature, Diseases/therapy
- Neurodevelopmental Disorders/prevention & control
- Survival Rate
- Vision Disorders/prevention & control
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Affiliation(s)
- Haresh Kirpalani
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Edward F Bell
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Susan R Hintz
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Sylvia Tan
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Barbara Schmidt
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Aasma S Chaudhary
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Karen J Johnson
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Margaret M Crawford
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Jamie E Newman
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Betty R Vohr
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Waldemar A Carlo
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Carl T D'Angio
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Kathleen A Kennedy
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Robin K Ohls
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Brenda B Poindexter
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Kurt Schibler
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Robin K Whyte
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - John A Widness
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - John A F Zupancic
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Myra H Wyckoff
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - William E Truog
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Michele C Walsh
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Valerie Y Chock
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Abbot R Laptook
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Gregory M Sokol
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Bradley A Yoder
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Ravi M Patel
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - C Michael Cotten
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Melissa F Carmen
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Uday Devaskar
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Sanjay Chawla
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Ruth Seabrook
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Rosemary D Higgins
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
| | - Abhik Das
- From the Department of Pediatrics, University of Pennsylvania, and Children's Hospital of Philadelphia, Philadelphia (H.K., B.S., A.S.C.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., K.J.J., J.A.W.); the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., V.Y.C.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (U.D.) - both in California; the Biostatistics and Epidemiology Division, RTI International, Research Triangle Park (S.T., M.M.C.), and the Department of Pediatrics, Duke University School of Medicine, Durham (C.M.C.) - both in North Carolina; the Biostatistics and Epidemiology Division, RTI International, Rockville (J.E.N., A.D.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (B.R.V., A.R.L.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (W.A.C.); the University of Rochester School of Medicine and Dentistry, Rochester, NY (C.T.D., M.F.C.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W.); the University of New Mexico Health Sciences Center, Albuquerque (R.K.O.); the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (R.K.O., B.A.Y.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (B.B.P., G.M.S.); Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., K.S.), the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W.), and Nationwide Children's Hospital and the Department of Pediatrics, Ohio State University College of Medicine, Columbus (R.S.); the Department of Pediatrics, Dalhousie University, Halifax, NS, Canada (R.K.W.); the Department of Neonatology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston (J.A.F.Z.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (R.M.P.); the Department of Pediatrics, Wayne State University, Detroit (S.C.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)
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17
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Newman JE, Garces A, Mazariegos M, Michael Hambidge K, Manasyan A, Tshefu A, Lokangaka A, Sami N, Carlo WA, Bose CL, Pasha O, Goco N, Chomba E, Goldenberg RL, Wright LL, Koso-Thomas M, Krebs NF. Theory-driven process evaluation of a complementary feeding trial in four countries. Health Educ Res 2014; 29:297-305. [PMID: 24399265 PMCID: PMC3959202 DOI: 10.1093/her/cyt115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 11/25/2013] [Indexed: 06/03/2023]
Abstract
We conducted a theory-driven process evaluation of a cluster randomized controlled trial comparing two types of complementary feeding (meat versus fortified cereal) on infant growth in Guatemala, Pakistan, Zambia and the Democratic Republic of Congo. We examined process evaluation indicators for the entire study cohort (N = 1236) using chi-square tests to examine differences between treatment groups. We administered exit interviews to 219 caregivers and 45 intervention staff to explore why caregivers may or may not have performed suggested infant feeding behaviors. Multivariate regression analysis was used to determine the relationship between caregiver scores and infant linear growth velocity. As message recall increased, irrespective of treatment group, linear growth velocity increased when controlling for other factors (P < 0.05), emphasizing the importance of study messages. Our detailed process evaluation revealed few differences between treatment groups, giving us confidence that the main trial's lack of effect to reverse the progression of stunting cannot be explained by differences between groups or inconsistencies in protocol implementation. These findings add to an emerging body of literature suggesting limited impact on stunting of interventions initiated during the period of complementary feeding in impoverished environments. The early onset and steady progression support the provision of earlier and comprehensive interventions.
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Affiliation(s)
- Jamie E. Newman
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Ana Garces
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Manolo Mazariegos
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - K. Michael Hambidge
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Albert Manasyan
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Antoinette Tshefu
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Adrien Lokangaka
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Neelofar Sami
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Waldemar A. Carlo
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Carl L. Bose
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Omrana Pasha
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Norman Goco
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Elwyn Chomba
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Robert L. Goldenberg
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Linda L. Wright
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Marion Koso-Thomas
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
| | - Nancy F. Krebs
- Statistics and Epidemiology, RTI International, Research Triangle Park, NC 27709, USA, Multidisciplinary Health Institute, Francisco Marroquin University, Guatemala City 01011, Guatemala, Institute for Nutrition of Central America and Panama, Guatemala City 01011, Guatemala, Department of Pediatrics, Section of Nutrition, University of Colorado Denver, Aurora, CO 80045, USA, Centre for Infectious Disease Research in Zambia, Lusaka 34681, Zambia, Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo, Department of Community Health Science and Family Medicine, Aga Khan University Medical College, Karachi 74800, Pakistan, Department of Pediatrics/Division of Neonatology, University of Alabama at Birmingham, Birmingham, AL 35233, USA, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA, University Teaching Hospital, Lusaka 34681, Zambia, Obstetrics and Gynecology, Columbia University, New York, NY 10027, USA and Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20852, USA
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