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Garrido F, González-Caballero JL, García P, Gianni ML, Garrido S, González L, Atance V, Raffaeli G, Cavallaro G. Association between co-sleeping in the first year of life and preschoolers´ sleep patterns. Eur J Pediatr 2024; 183:2111-2119. [PMID: 38351212 PMCID: PMC11035441 DOI: 10.1007/s00431-024-05429-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 03/27/2024]
Abstract
This study aimed to investigate the association between co-sleeping practiced during the first year of life and preschoolers' sleep patterns. A cross-sectional study including toddlers was designed to analyze their sleep patterns. The Brief Infant Sleep Questionnaire, validated in Spanish, was used to measure sleep quality. A latent class analysis was performed to identify qualitative subgroups in the sample and explore the effects of co-sleeping. The sleep patterns of 276 children were analyzed. A total of 181 (65%) parents reported having practiced co-sleeping with their children. The latent class analysis identified a two-class solution with two different sleep patterns. One of them showed a worse quality sleep pattern, which had a significant association with having practiced co-sleeping during the first year of life, and with the fact that they were still sleeping in the parents' room, among other characteristics related to co-sleeping and parental concerns. Breastfeeding also showed association with a worse quality sleep pattern. Conclusion: Based on the present findings, co-sleeping during the first year of life appears to be associated with poor sleep patterns in young preschoolers. What is Known: • Co-sleeping shows benefits for infants and parents, mainly facilitating successful breastfeeding. • Literature on the effect of co-sleeping in lately sleep quality in children and their parents is very limited. What is New: • Co-sleeping practiced during the first year of life could be associated with a worse sleep pattern measured with BISQ-E tool. • A balance between the correct practice of co-sleeping and the achievement of a healthy sleep routine in preschool should probably be part of parents' health education.
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Affiliation(s)
- Felipe Garrido
- Department of Pediatrics, Clínica Universidad de Navarra. Calle Marquesado de Santa Marta, 1, Madrid (28227), Spain.
| | | | | | - Maria-Lorella Gianni
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122, Milan, Italy
- Neonatal Intensive Care Unit. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico. 20122, Milan, Italy
| | - Silvia Garrido
- Department of Pediatrics, Clínica Universidad de Navarra, Madrid (28227), Spain
| | - Lucía González
- Department of Pediatrics, Clínica Universidad de Navarra, Madrid (28227), Spain
| | - Verónica Atance
- Department of Pediatrics, Clínica Universidad de Navarra, Madrid (28227), Spain
| | - Genny Raffaeli
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122, Milan, Italy
- Neonatal Intensive Care Unit. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico. 20122, Milan, Italy
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico. 20122, Milan, Italy
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Ramos PV, Hoogerwerf PJ, Smith PK, Finley C, Okoro UE, Jennissen CA. Pre- and postnatal safe sleep knowledge and planned as compared to actual infant sleep practices. Inj Epidemiol 2023; 10:55. [PMID: 37885011 PMCID: PMC10601097 DOI: 10.1186/s40621-023-00467-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND Our objectives were to compare safe sleep knowledge, attitudes and planned vs. actual infant sleep practices among expectant mothers before and after their infant's birth and to determine whether differences (if present) were associated with any demographic variables. METHODS Study participants were surveyed at their 28-week prenatal and 6-week postpartum obstetric clinic visits from November 2019-February 2021. Due to COVID-19 pandemic cancellation of in-person postpartum visits, many participants received text messaging encouraging them to take the follow-up survey online. Frequency and comparative analyses were performed. RESULTS 355 women (44%) completed both pre- and postnatal surveys. Many participants increased their safe sleep knowledge during the study. For example, of those who were unsure or thought it safe for a baby to sleep in a baby swing/bouncy seat, two-thirds (67/102, 66%) stated it was unsafe on the postnatal survey. In addition, many who were unsure or planned sleep practices considered unsafe prenatally reported utilizing safe sleep practices on their postnatal survey. For example, of those unsure or planning to use a crib bumper (17% of the total), almost all (88%) were not using one postnatally. Conversely, some participants who reported they would be following safe sleep practices prenatally were not doing so postpartum. For example, 13% of those stating they would place their child on their back reported using another sleep position on the postnatal survey. Certain demographics had higher proportions reporting this reversal for specific safe sleep practices. For example, non-Hispanic Whites (19%) as compared to other races/ethnicities (5%) and those with incomes ≥ $75,000 (21%) as compared with those with less income (9%) had higher proportions stating their infant would sleep in the same room but then reported postnatally they were sleeping in a different room, p = 0.0094 and p = 0.0138, respectively. CONCLUSIONS We observed increases in safe sleep knowledge and that some participants followed safer sleep practices than they had planned. However, there were also participants who planned to use safe sleep practices prenatally who were not doing so after their baby's birth. Our study identified demographics for which targeted safe sleep education and more effective interventions may be needed.
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Affiliation(s)
- Paula Valiño Ramos
- Department of Emergency Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA USA
- Medical Scientist Training Program, Washington University in St. Louis, St. Louis, MO USA
| | - Pamela J. Hoogerwerf
- Injury Prevention and Community Outreach, University of Iowa Stead Family Children’s Hospital, University of Iowa, Iowa City, IA USA
| | - Penny K. Smith
- Iowa’s Statewide Perinatal Care Program, University of Iowa Stead Family Children’s Hospital, University of Iowa, Iowa City, IA USA
| | - Carolyn Finley
- University of Iowa Stead Family Children’s Hospital, University of Iowa, Iowa City, IA USA
| | - Uche E. Okoro
- Department of Emergency Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA USA
| | - Charles A. Jennissen
- Department of Emergency Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA USA
- Department of Pediatrics, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA USA
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3
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Newman L, Thorne H, Gupta CC, Sprajcer M. How do infant feeding method, sleeping location, and postpartum depression interact with maternal sleep quality? Sleep Med 2023; 110:183-189. [PMID: 37619378 DOI: 10.1016/j.sleep.2023.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/13/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
New mothers generally experience poor and/or disrupted sleep. A range of infant care and mental health factors may impact new mothers' sleep quality. A cross-sectional online survey was completed by a sample of 101 Australian new mothers with children under 12 months (M = 5.52 months, SD = 3.29 months) to examine the relationship between infant feeding method, infant sleeping location, and postpartum depression with maternal sleep quality. Subjective maternal sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), and postpartum depression was measured using the Edinburgh Postpartum Depression Scale (EPDS). Overall, new mothers experienced poor subjective sleep quality, with high average PSQI scores, above the cut-off of 5 (M = 9.63, SD = 4.07). The majority of new mothers did not experience postpartum depression, with an average EPDS score below the cut-off of 11 (8.66, SD = 5.20). Mothers who breastfed their infants experienced significantly better subjective sleep quality than mothers who bottle-fed, with a medium effect size (ηp2 = 0.458). Subjective maternal sleep quality did not differ based on infant sleeping location. Poor subjective maternal sleep quality was a significant predictor of postpartum depression. While poor sleep was common in this sample of Australian new mothers, this study demonstrated that new mothers who breastfeed may experience slightly better subjective sleep quality than other feeding methods. Further research into, and better services for the education and advocation of, new mothers' sleep quality will be beneficial to both new mothers and clinicians.
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Affiliation(s)
- Laura Newman
- Appleton Institute, Central Queensland University, Wayville, SA, Australia
| | - Hannah Thorne
- Appleton Institute, Central Queensland University, Wayville, SA, Australia
| | - Charlotte C Gupta
- Appleton Institute, Central Queensland University, Wayville, SA, Australia
| | - Madeline Sprajcer
- Appleton Institute, Central Queensland University, Wayville, SA, Australia.
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4
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Lucchini M, Ordway MR, Kyle MH, Pini N, Barbosa JR, Sania A, Shuffrey LC, Firestein MR, Fernández CR, Fifer WP, Alcántara C, Monk C, Dumitriu D. Racial/ethnic disparities in infant sleep in the COVID-19 Mother Baby Outcomes (COMBO) study. Sleep Health 2022; 8:429-439. [PMID: 36038499 PMCID: PMC9411732 DOI: 10.1016/j.sleh.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 06/13/2022] [Accepted: 06/20/2022] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Investigate racial and ethnic differences in infant sleep and examine associations with insurance status and parent-infant bedtime behavioral factors (PIBBF). METHODS Participants are part of the COVID-19 Mother Baby Outcomes (COMBO) Initiative, Columbia University. Data on infant sleep (night, day and overall sleep duration, night awakenings, latency, infant's sleep as a problem) were collected at 4 months postpartum. Regressions estimated associations between race/ethnicity, insurance status, PIBBF and infants' sleep. RESULTS A total of 296 infants were eligible (34.4% non-Hispanic White [NHW], 10.1% Black/African American [B/AA], 55.4% Hispanic). B/AA and Hispanic mothers were more likely to have Medicaid, bed/room-share, and report later infant bedtime compared to NHW mothers. Infants of B/AA mothers had longer sleep latency compared to NHW. Infants of Hispanic mothers slept less at night (∼70 ± 12 minutes) and more during the day (∼41 ± 12 minutes) and Hispanic mothers were less likely to consider infants' sleep as a problem compared to NHW (odds ratio 0.4; 95% confidence interval: 0.2-0.7). After adjustment for insurance status and PIBBF, differences by race/ethnicity for night and day sleep duration and perception of infant's sleep as a problem persisted (∼32 ± 14 minutes, 35 ± 15 minutes, and odds ratio 0.4; 95% confidence interval: 0.2-0.8 respectively). Later bedtime was associated with less sleep at night (∼21 ± 4 minutes) and overall (∼17 ± 5 minutes), and longer latency. Infants who did not fall asleep independently had longer sleep latency, and co-sleeping infants had more night awakenings. CONCLUSIONS Results show racial/ethnic differences in sleep in 4-month-old infants across sleep domains. The findings of our study suggest that PIBBF have an essential role in healthy infant sleep, but they may not be equitably experienced across racial/ethnic groups.
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Affiliation(s)
- Maristella Lucchini
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA.
| | | | - Margaret H Kyle
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Nicolò Pini
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Jennifer R Barbosa
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Ayesha Sania
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Lauren C Shuffrey
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA
| | - Morgan R Firestein
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA
| | - Cristina R Fernández
- New York-Presbyterian Hospital, New York, New York, USA; Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York, USA
| | - William P Fifer
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA
| | | | - Catherine Monk
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA; New York State Psychiatric Institute, New York, New York, USA; Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, New York, USA
| | - Dani Dumitriu
- Division of Developmental Neuroscience, Department of Psychiatry, Columbia University Irving Medical Center, New York, New York, USA; Division of Child and Adolescent Health, Department of Pediatrics, Columbia University Irving Medical Center, New York, New York, USA; Sackler Institute, Zuckerman Institute, and the Columbia Population Research Center, Columbia University, New York, New York, USA.
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5
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Moon RY, Carlin RF, Hand I. Evidence Base for 2022 Updated Recommendations for a Safe Infant Sleeping Environment to Reduce the Risk of Sleep-Related Infant Deaths. Pediatrics 2022; 150:188305. [PMID: 35921639 DOI: 10.1542/peds.2022-057991] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Every year in the United States, approximately 3500 infants die of sleep-related infant deaths, including sudden infant death syndrome (SIDS) (International Statistical Classification of Diseases and Related Health Problems 10th Revision [ICD-10] R95), ill-defined deaths (ICD-10 R99), and accidental suffocation and strangulation in bed (ICD-10 W75). After a substantial decline in sleep-related deaths in the 1990s, the overall death rate attributable to sleep-related infant deaths have remained stagnant since 2000, and disparities persist. The triple risk model proposes that SIDS occurs when an infant with intrinsic vulnerability (often manifested by impaired arousal, cardiorespiratory, and/or autonomic responses) undergoes an exogenous trigger event (eg, exposure to an unsafe sleeping environment) during a critical developmental period. The American Academy of Pediatrics recommends a safe sleep environment to reduce the risk of all sleep-related deaths. This includes supine positioning; use of a firm, noninclined sleep surface; room sharing without bed sharing; and avoidance of soft bedding and overheating. Additional recommendations for SIDS risk reduction include human milk feeding; avoidance of exposure to nicotine, alcohol, marijuana, opioids, and illicit drugs; routine immunization; and use of a pacifier. New recommendations are presented regarding noninclined sleep surfaces, short-term emergency sleep locations, use of cardboard boxes as a sleep location, bed sharing, substance use, home cardiorespiratory monitors, and tummy time. In addition, additional information to assist parents, physicians, and nonphysician clinicians in assessing the risk of specific bed-sharing situations is included. The recommendations and strength of evidence for each recommendation are published in the accompanying policy statement, which is included in this issue.
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Affiliation(s)
- Rachel Y Moon
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Rebecca F Carlin
- Division of Pediatric Critical Care and Hospital Medicine, Department of Pediatrics, Columbia University Irving Medical Center, NewYork-Presbyterian Hospital, New York City, New York
| | - Ivan Hand
- Department of Pediatrics, SUNY-Downstate College of Medicine, NYC Health + Hospitals, Kings County, Brooklyn, New York
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6
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Bilgin A, Wolke D. Bed-Sharing in the First 6 Months: Associations with Infant-Mother Attachment, Infant Attention, Maternal Bonding, and Sensitivity at 18 Months. J Dev Behav Pediatr 2022; 43:e9-e19. [PMID: 34117203 DOI: 10.1097/dbp.0000000000000966] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/12/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The objective of this study was to investigate whether bed-sharing during the first 6 months of life is associated with infant's attachment and behavioral outcomes and mother's bonding and sensitive parenting at 18 months of age. METHODS The sample with complete longitudinal data comprised 178 infants and their caretakers. Bed-sharing was assessed with maternal report at term, 3, 6, and 18 months. Infant attachment was measured at 18 months using the strange situation procedure. Infant behavioral outcomes (i.e., poor attention/hyperactivity and task persistence) were assessed with 2 observational measures at 18 months. Maternal sensitivity was observed at 3 and 18 months, and mothers reported on bonding to their infant at term, 3, and 18 months. RESULTS Bed-sharing was common at term (41.2%), which decreased at 3 months (22.6%) followed by a slight increase at 6 (27.5%) and 18 months of age (31.3%). No associations between bed-sharing during the first 6 months and infant-mother attachment and infant behavioral outcomes at 18 months were found. Similarly, there were no associations between bed-sharing during the first 6 months and maternal bonding and sensitivity at consequent assessment points (i.e., 3 and 18 months). CONCLUSION Bed-sharing during the first 6 months is not associated with positive or negative outcomes about infant-mother attachment, infant behavior, maternal bonding, or sensitive parenting.
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Affiliation(s)
- Ayten Bilgin
- School of Psychology, University of Kent, Canterbury, United Kingdom
- Department of Psychology, University of Warwick, Coventry, United Kingdom
| | - Dieter Wolke
- Department of Psychology, University of Warwick, Coventry, United Kingdom
- Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, United Kingdom
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7
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Barry ES, McKenna JJ. Reasons mothers bedshare: A review of its effects on infant behavior and development. Infant Behav Dev 2021; 66:101684. [PMID: 34929477 DOI: 10.1016/j.infbeh.2021.101684] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/05/2021] [Accepted: 12/09/2021] [Indexed: 11/05/2022]
Abstract
Bedsharing is controversial for nighttime caregiving in the U.S. today, as in most of the West. However, from the standpoint of evolutionary pediatrics, anthropology, and cultural psychology, bedsharing is not controversial at all, representing the context for human infant evolution and conferring a host of physiological benefits to the infant as well as the mother. In an effort to understand the rise in Western bedsharing in recent decades (and following Ball, 2002; McKenna & Volpe, 2007), Salm Ward (2015) systematically reviewed the literature on mother-infant bedsharing and identified ten reasons why mothers choose to bedshare: (1) breastfeeding, (2) comforting for mother or infant, (3) better/more sleep for infant or parent, (4) monitoring, (5) bonding/ attachment, (6) environmental reasons, (7) crying, (8) cultural or familial traditions, (9) disagree with danger, and (10) maternal instinct. The current paper offers the "review behind the review," highlighting the scientific evidence behind the reasons mothers give for their decision to bedshare, focusing on how mothers' decisions about infant sleep location influence infant behavior and development.
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Affiliation(s)
- Elaine S Barry
- Human Development & Family Studies, The Pennsylvania State University, Fayette, The Eberly Campus, USA.
| | - James J McKenna
- Mother-Baby Sleep Lab, Department of Anthropology, University of Notre Dame, South Bend, IN, USA; Department of Anthropology, Santa Clara University, Santa Clara, CA, USA
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8
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Abstract
UNLABELLED Background: Sleep health is important for development and improves overall health. There are large socioeconomic gradients in sleep health, from childhood through adulthood. Recent findings suggest that children from neighborhoods with poorer socioeconomic conditions have more sleep problems. The current study aimed to investigate the associations between neighborhood factors and infant sleep health. PARTICIPANTS AND METHODS Secondary data analysis using Multilevel Modeling (MLM) was conducted for a subsample of 2445 women from the All our Families longitudinal cohort study, for whom early pregnancy neighborhood data could be geocoded. The Vancouver Area Neighborhood Deprivation Index (VANDIX) was calculated using census data to assess neighborhood SES. Neighborhood disorder was measured using community crime reports from police services. Mothers rated the perceived safety of their neighborhood and reported on their infants' nighttime sleep consolidation, awakenings, and onset latency at 12 months postpartum. RESULTS MLM indicated that neighborhood disorder and maternal perceptions of unsafety predicted less consolidated sleep after accounting for individual and family-level factors including maternal ethnicity, household income, breastfeeding duration, and co-sleeping. Neighborhood deprivation was indirectly related to less consolidated sleep among 12-month-old infants through more reports of disorder and maternal perceptions of less safety. CONCLUSIONS Consistent with the socio-ecological model of sleep, neighborhood-level, family, and individual factors influence infant sleep health. Policy efforts to increase neighborhood safety and public health initiatives to increase awareness of the importance of sleep could help improve infant sleep health.
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Affiliation(s)
- Anna L MacKinnon
- Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,Department of Psychology, University of Calgary
| | - Lianne Tomfohr-Madsen
- Department of Psychology, University of Calgary.,Alberta Children's Hospital Research Institute.,Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Suzanne Tough
- Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada
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9
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Cheung BY, Takemura K, Ou C, Gale A, Heine SJ. Considering cross-cultural differences in sleep duration between Japanese and Canadian university students. PLoS One 2021; 16:e0250671. [PMID: 33901233 PMCID: PMC8075246 DOI: 10.1371/journal.pone.0250671] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/08/2021] [Indexed: 12/26/2022] Open
Abstract
Sleep is a fundamental biological process that all humans exhibit, and there is much evidence that people suffer adverse health outcomes from insufficient sleep. Despite this evidence, much research demonstrates significant heterogeneity in the amounts that people sleep across cultures. This suggests that despite serving fundamental biological functions, sleep is also subject to cultural influence. Using self-report and actigraphy data we examined sleep among European Canadian, Asian Canadian, and Japanese university students. Significant cultural differences emerged in terms of various parameters of sleep (e.g. sleep time), and beliefs about sleep (e.g. perceived relation between sleep and health). Despite sleeping significantly less than European Canadians, Japanese participants slept less efficiently, yet reported being less tired and having better health. Moreover, relative to European Canadians, Japanese participants perceived a weaker relation between sleep and physical health, and had a significantly shorter ideal amount of sleep. Asian Canadians’ sleep behaviors and attitudes were largely similar to European Canadians suggesting that people acculturate to local cultural sleep norms.
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Affiliation(s)
| | - Kosuke Takemura
- Shiga University, Shiga, Japan
- Kyoto University, Kyoto, Japan
| | - Christine Ou
- University of British Columbia, Vancouver, Canada
| | - Anne Gale
- University of British Columbia, Vancouver, Canada
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10
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Abstract
Infants evolved in the context of close contact (including co-sleeping). Evolutionary context is rarely considered in psychological infant sleep research, and Western sleep researchers make assumptions about what optimal "normal" infant sleep is and how to achieve early, deep, infant sleep consolidation and avoid infant sleep problems. However, an evolutionary and anthropological view of infant sleep as species-typical recognizes that human evolution likely prepared the infant brain for optimal development within its evolutionary context - co-sleeping. Thus, "normal" infant sleep, sleep consolidation, and sleep problems should all be understood within the framework of co-sleeping infants, not the historically new-phenomenon of solitary-sleeping infants. Much work needs to be done in order to understand "normal" infant sleep as species-typical and how adaptive infants are to environments that stray from their evolutionary norm.
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Affiliation(s)
- Elaine S Barry
- Human Development & Family Studies, Penn State Fayette, The Eberly Campus, Lemont Furnace, PA, USA
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11
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Nakagawa M, Ohta H, Shimabukuro R, Asaka Y, Nakazawa T, Oishi Y, Hirata M, Ando A, Ikeda T, Yoshimura Y, Mitani Y, Kaneshi Y, Morioka K, Fukutomi R, Kobayashi K, Ozawa M, Takeshima M, Mishima K, Kikuchi M, Cho K, Yoda H, Kusakawa I. Daytime nap and nighttime breastfeeding are associated with toddlers' nighttime sleep. Sci Rep 2021; 11:3028. [PMID: 33542276 PMCID: PMC7862350 DOI: 10.1038/s41598-021-81970-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 01/14/2021] [Indexed: 11/23/2022] Open
Abstract
The purpose of the present study is to examine the association between toddlers' sleep arrangements and their nighttime sleep duration and other sleep variables. For this investigation, we performed a study in which child activity and sleep levels were recorded using actigraphy. The parents of 1.5-year-old toddlers (n = 106) were asked to attach an actigraphy unit to their child’s waist with an adjustable elastic belt and complete a sleep diary for 7 consecutive days. Questionnaires were used to assess the sleep arrangements of the toddlers. There was a significant negative correlation between nap duration and nighttime sleep duration, suggesting that longer nap sleep induces shorter nighttime sleep duration. Among the sleep arrangements, such as nighttime breastfeeding or co-sleeping, only nighttime breastfeeding predicted shorter nighttime sleep duration. Our findings indicate that shorter naps induce a longer nighttime sleep in 1.5-year-old toddlers while nighttime breastfeeding decreases their nighttime sleep duration.
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Affiliation(s)
- Machiko Nakagawa
- Department of Pediatrics, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan.,Pediatric Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan.,Department of Neonatology, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Hidenobu Ohta
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, Akita, 010-8543, Japan. .,Department of Sleep-Wake Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-higashi-cho, Kodaira, Tokyo, 187-8553, Japan. .,Department of Psychiatry, Asai Hospital, 38-1 Togane, Chiba, 283-0062, Japan.
| | - Rinshu Shimabukuro
- Department of Pediatrics, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan
| | - Yoko Asaka
- Faculty of Health Sciences, Hokkaido University, N12, W5, Kita-ku, Sapporo, 060-0812, Japan
| | - Takayo Nakazawa
- Maternity and Perinatal Care Center, Hokkaido University Hospital, N15, W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Yoshihisa Oishi
- Department of Pediatrics, Japanese Red Cross Medical Center, 4-1-22 Hiroo, Shibuya-ku, Tokyo, 150-8935, Japan
| | - Michio Hirata
- Department of Pediatrics, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan
| | - Akiko Ando
- Maternity and Perinatal Care Center, Hokkaido University Hospital, N15, W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Takashi Ikeda
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Yuko Yoshimura
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan.,Institute of Human and Social Sciences, Kanazawa University, Kakuma-machi, Kanazawa, 921-1192, Japan
| | - Yusuke Mitani
- Department of Pediatrics, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Yousuke Kaneshi
- Maternity and Perinatal Care Center, Hokkaido University Hospital, N15, W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Keita Morioka
- Maternity and Perinatal Care Center, Hokkaido University Hospital, N15, W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Rika Fukutomi
- Pediatric Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan
| | - Kyoko Kobayashi
- Pediatric Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan
| | - Miwa Ozawa
- Department of Pediatrics, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan
| | - Masahiro Takeshima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, Akita, 010-8543, Japan
| | - Kazuo Mishima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, Akita, 010-8543, Japan
| | - Mitsuru Kikuchi
- Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Kazutoshi Cho
- Maternity and Perinatal Care Center, Hokkaido University Hospital, N15, W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Hitoshi Yoda
- Department of Neonatology, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - Isao Kusakawa
- Department of Pediatrics, St. Luke's International Hospital, 9-1 Akashi-cho, Chuo-ku, Tokyo, 104-8560, Japan.,Pediatric Nursing, Graduate School of Nursing Science, St. Luke's International University, 10-1 Akashi-cho, Chuo-ku, Tokyo, 104-0044, Japan
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12
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Andre CJ, Lovallo V, Spencer RMC. The effects of bed sharing on sleep: From partners to pets. Sleep Health 2021; 7:314-323. [PMID: 33436343 DOI: 10.1016/j.sleh.2020.11.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Bed sharing is common practice across the global population. However, the vast majority of research on bed sharing has focused solely on mother-infant bed sharing. METHODS Here, we provide a holistic review of research on bed sharing. Articles investigating the relationship between bed sharing and sleep were identified in 4 dyad categories: (1) parent and child, (2) couples, (3) siblings, and (4) pet owners and pets. Of interest was whether sleep-promoting factors such as psychological comfort were generalizable across bed-sharing dyads; alternatively, sleep-demoting factors such as movement or heat may be commonalities. RESULTS We found that, across dyad types, in general, subjective reports of sleep quality were better when bed sharing despite generally worse objective measures of sleep. CONCLUSIONS Understanding bed sharing is important to treating sleep disturbances, given the prevalence of shared beds. This scoping review points to critical gaps in our understanding of bed sharing that motivate future research.
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Affiliation(s)
- Chloe J Andre
- Department of Psychological and Brain Sciences, University of Massachusetts, Amherst, MA, USA
| | - Victoria Lovallo
- Commonwealth Honors College, University of Massachusetts, Amherst, MA, USA
| | - Rebecca M C Spencer
- Department of Psychological and Brain Sciences, University of Massachusetts, Amherst, MA, USA; Neuroscience & Behavior Program, University of Massachusetts, Amherst, MA, USA; Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, USA.
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13
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Lee J, Yeo S, Kim K, Chung S. Sleep Environment and Non-Rapid Eye Movement-Related Parasomnia Among Children: 42 Case Series. Sleep Med Res 2020. [DOI: 10.17241/smr.2020.00535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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14
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Raghunath BL, Azhari A, Bornstein MH, Setoh P, Esposito G. Experimental manipulation of maternal proximity during short sequences of sleep and infant calming response. Infant Behav Dev 2020; 59:101426. [DOI: 10.1016/j.infbeh.2020.101426] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 12/23/2019] [Accepted: 02/03/2020] [Indexed: 11/22/2022]
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15
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Zajac L, Prendergast S, Feder KA, Cho B, Kuhns C, Dozier M. Trajectories of sleep in Child Protective Services (CPS)-referred children predict externalizing and internalizing symptoms in early childhood. Child Abuse Negl 2020; 103:104433. [PMID: 32126399 PMCID: PMC7716882 DOI: 10.1016/j.chiabu.2020.104433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Previous studies have established links between poor sleep and negative developmental outcomes. However, it remains unclear whether young maltreated children demonstrate atypical sleep patterns and whether sleep duration is associated with emotional and behavioral problems. OBJECTIVE Explore trajectories of sleep among Child Protective Services (CPS)-referred children and examine whether sleep duration is significantly associated with externalizing and internalizing symptoms, even when controlling for the home environment. PARTICIPANTS Participants included 197 children (Mage at first assessment = 10.24 months, SD = 6.39) whose parents were referred to CPS due to allegations of maltreatment. METHODS Parents completed sleep diaries for their children at up to five time-points and the preschool version of the Child Behavior Checklist (CBCL) when children were approximately 2 years of age (Mage = 26.40 months, SD = 3.36). The Home Observation for Measurement of the Environment Scale (HOME) assessed the quality of the early home environment. RESULTS Results from latent growth curve modeling demonstrated that CPS-referred children significantly varied (B = 3.28, SE = 0.90, p < .001) in the amount they slept in a 24-hour period at baseline (i.e., 4.1 months of age), and the amount of total sleep in a 24-hour period significantly decreased across time (B1 = -0.03, SE = 0.01, p < .001). When controlling for characteristics of the home environment, total sleep in a 24-hour period at baseline significantly inversely predicted externalizing (B = -1.03, SE = 0.06, p < .001) and internalizing symptoms (B = -0.19, SE = 0.03, p < .001) in early childhood. CONCLUSIONS This study is an important first step in exploring trajectories of sleep among CPS-referred children. Findings underscore sleep as a promising target for interventions aimed at promoting regulation and highlight the need for future research to examine sleep in maltreated children as a predictor of later developmental outcomes.
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Affiliation(s)
| | | | - Kenneth A Feder
- Johns Hopkins Bloomberg School of Public Health, United States
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16
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Abstract
The human need for sleep is universal and unquestioned; however, humans vary in their sleep needs according to age, individual differences, as well as cultural and social norms and practices. Therefore, what is “normal” in infant sleep and the development of sleep architecture in humans is highly dependent on biological and sociocultural variables as well as socially constructed assumptions about what infant sleep “should” look like. This paper uses a multidisciplinary approach to review papers from fields including pediatrics, anthropology, psychology, medicine, and sociology to understand “normal” infant sleep. Because human culture and behavioral practice changes much more quickly than evolved human biology, and because human evolutionary history occurred in the context of breastfeeding and cosleeping, new work in the field of infant sleep architecture development would benefit from a multidisciplinary approach. To come to a consensus about what is “normal” infant sleep, researchers must agree on underlying basic assumptions of infant sleep from which to ask question and interpret findings.
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Affiliation(s)
- Elaine S. Barry
- Human Development and Family Studies, Penn State Fayette, The Eberly Campus, Lemont Furnace, PA, USA
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17
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Duh-Leong C, Jo Messito M, Katzow MW, Tomopoulos S, Nagpal N, Fierman AH, Gross RS. Material Hardships and Infant and Toddler Sleep Duration in Low-Income Hispanic Families. Acad Pediatr 2020; 20:1184-1191. [PMID: 32650047 PMCID: PMC9286002 DOI: 10.1016/j.acap.2020.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 06/29/2020] [Accepted: 07/01/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To assess relationships between material hardships, shortened sleep duration, and suboptimal sleep practices across infancy and toddlerhood in low-income Hispanic families. METHODS We analyzed longitudinal data of 451 low-income Hispanic mother-child pairs from a child obesity prevention trial. During infancy and toddlerhood, we used adjusted linear regression to assess associations between material hardship (financial difficulty, food insecurity, housing disrepair, and multiple hardships), sleep duration (24-hour, night), and the number of suboptimal sleep practices (eg, later bedtime, co-sleeping). We used adjusted linear regression to assess the longitudinal association between the number of suboptimal sleep practices in infancy and toddlerhood, and tested whether specific or multiple hardships moderated this association. RESULTS In infants, financial difficulty and multiple hardships were associated with decreased night sleep (B = -0.59 hours, 95% confidence interval [CI]: -1.04, -0.14; and B = -0.54 hours, 95% CI: -1.00, -0.08). Housing disrepair was associated with decreased 24-hour sleep (B = -0.64 hours, 95% CI: -1.29, -0.01). In toddlers, each additional suboptimal sleep practice was associated with a decrease in night sleep (B = -0.19 hours, 95% CI: -0.29, -0.09). Each additional suboptimal sleep practice in infancy was associated with a 0.30 increase in the number of suboptimal sleep practices in toddlerhood (P < .001), with greater increases for those with food insecurity or multiple hardships. CONCLUSION Specific and multiple hardships shortened sleep duration during infancy, and moderated the increase of suboptimal sleep behaviors between infancy and toddlerhood. Future studies should consider these early critically sensitive periods for interventions to mitigate material hardships and establish healthy sleep practices.
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Affiliation(s)
- Carol Duh-Leong
- Division of General Pediatrics, Department of Pediatrics, New York University Grossman School of Medicine (C Duh-Leong, MJ Messito, S Tomopoulos, N Nagpal, AH Fierman, and RS Gross).
| | - Mary Jo Messito
- Division of General Pediatrics, Department of Pediatrics, New York University School of Medicine, 550 First Avenue, New York, NY 10016 USA
| | - Michelle W. Katzow
- Division of General Pediatrics, Department of Pediatrics, Zucker School of Medicine at, Hofstra/Northwell, 269-01 76th Ave, New Hyde Park, NY 11040 USA
| | - Suzy Tomopoulos
- Division of General Pediatrics, Department of Pediatrics, New York University School of Medicine, 550 First Avenue, New York, NY 10016 USA
| | - Nikita Nagpal
- Division of General Pediatrics, Department of Pediatrics, New York University School of Medicine, 550 First Avenue, New York, NY 10016 USA
| | - Arthur H. Fierman
- Division of General Pediatrics, Department of Pediatrics, New York University School of Medicine, 550 First Avenue, New York, NY 10016 USA
| | - Rachel S. Gross
- Division of General Pediatrics, Department of Pediatrics, New York University School of Medicine, 550 First Avenue, New York, NY 10016 USA
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18
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19
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Abstract
This longitudinal study examined the associations among infant crying, symptoms of sleeping problems, and attachment while considering the influence of maternal sensitivity and depressive symptoms. One hundred and five healthy full-term infants (42.9% female) were assessed for crying and symptoms of sleeping problems at 3 and 18 months via parental interview. Maternal sensitivity was measured through researcher observation, and attachment was measured at 18 months using the Strange Situation procedure. It was found that infant crying and symptoms of sleeping problems were not linked to the organized patterns of secure or insecure (avoidant versus resistant) attachment. However, when the disorganized attachment was considered, there were direct links found from infant crying and symptoms of sleeping problems at 3 months (β= .22, p< .05) and 18 months (β= .21, p< .05). Thus, crying and symptoms of sleeping problems as early as 3 months may indicate a disruption in the coherence of infants' relationship to their caretakers.
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Affiliation(s)
- Ayten Bilgin
- Department of Psychology, University of Warwick , Coventry, UK.,Psychologische Hochschule Berlin , Berlin, Germany
| | - Dieter Wolke
- Department of Psychology, University of Warwick , Coventry, UK.,Division of Mental Health and Wellbeing, Warwick Medical School, University of Warwick , Coventry, UK
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20
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Goetz AR, Beebe DW, Peugh JL, Mara CA, Lanphear BP, Braun JM, Yolton K, Stark LJ. Longer sleep duration during infancy and toddlerhood predicts weight normalization among high birth weight infants. Sleep 2019; 42:5167948. [PMID: 30412240 PMCID: PMC6369726 DOI: 10.1093/sleep/zsy214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/18/2018] [Indexed: 11/13/2022] Open
Abstract
Study Objectives High birth weight (HBW; ≥ 4000 g) is strongly associated with later overweight, yet little is known about how to disrupt this trajectory. The current study examined sleep practices during infancy and toddlerhood among children born HBW or normal birth weight (NBW; 2500-3999 g). Methods Latent growth curve models were used to examine sleep during infancy and toddlerhood among 270 mother-child dyads enrolled in the Health Outcomes and Measures of the Environment Study. Total sleep duration in 24 hr, sleep maintenance, and restlessness/vocalizations were collected at 6 month intervals between ages 6 and 24 months. Height and weight were obtained at ages 24 or 36 months, and normal and overweight BMI were derived. Sleep was examined among children with a normal BMI during the preschool years who were either HBW (HBW-Normal, n = 36) or NBW (NBW-Normal, n = 184) compared with overweight preschoolers (Overweight, n = 50). It was predicted that the Overweight group would have poorer sleep across infancy and toddlerhood compared with HBW-Normal and NBW-Normal. Results HBW-Normal had the longest and Overweight had the shortest mean 24 hr sleep duration across all time points with NBW-Normal falling in-between the two groups. Compared with Overweight, HBW-Normal exhibited longer 24 hr sleep duration at age 6 months with this group difference maintained over infancy and toddlerhood. No group difference was found for NBW-Normal. Conclusions A longer sleep duration in the first several years of life is associated with development of normal BMI among HBW children. These findings suggest that longer sleep duration may protect HBW children from becoming overweight.
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Affiliation(s)
- Amy R Goetz
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Dean W Beebe
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH
| | - James L Peugh
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH
| | - Constance A Mara
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH
| | - Bruce P Lanphear
- Child and Family Research Institute, British Columbia Children’s Hospital, Vancouver, British Columbia, Canada
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Joseph M Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI
| | - Kimberly Yolton
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH
- Division of General and Community Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Lori J Stark
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH
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21
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Renz-Polster H, De Bock F. Deformational plagiocephaly: The case for an evolutionary mismatch. Evol Med Public Health 2018; 2018:180-185. [PMID: 30151193 PMCID: PMC6101632 DOI: 10.1093/emph/eoy019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/20/2018] [Indexed: 11/22/2022]
Abstract
Lay Summary: In industrialized societies some babies develop flattening of the back part of their head. It is thought that this comes from sleeping supine, which has been shown to be the safest option for babies. However, this explanation cannot be correct from an evolutionary standpoint: why should safe sleep come at the cost of a misshaped head? Babies in industrialized societies are generally healthy. The medical problems they may be afflicted with are usually well understood. Deformational plagiocephaly presents a notable exception. In many industrialized countries, one in six babies shows posterior flattening of the skull—a feature noteworthy from an evolutionary perspective as the well rounded cranium is part of the ‘Kindchenschema’ evolved to secure care for the infant. It is commonly held that the deformation of the posterior cranium occurs as a consequence of the supine sleep position, now advocated as the safest sleep position for babies by medical experts. This explanation, however, does not fare well in the light of evolutionary theory: why should safe sleep come at the cost of a social handicap? Here, we present an alternative hypothesis that is grounded on evolutionary mismatch theory and exemplifies how evolutionary reasoning can help clarify medical conditions relevant to today’s public health.
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Affiliation(s)
- Herbert Renz-Polster
- Mannheim Institute of Public Health, Social and Preventive Medicine, University Medicine Mannheim, Heidelberg University, Ludolf-Krehl-Straße Mannheim, Germany
| | - Freia De Bock
- Mannheim Institute of Public Health, Social and Preventive Medicine, University Medicine Mannheim, Heidelberg University, Ludolf-Krehl-Straße Mannheim, Germany.,Center for Child Neurology, Theobald-Christ-Straße 16, Frankfurt a.M., Germany
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22
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Smith BP, Hazelton PC, Thompson KR, Trigg JL, Etherton HC, Blunden SL. A Multispecies Approach to Co-Sleeping : Integrating Human-Animal Co-Sleeping Practices into Our Understanding of Human Sleep. Hum Nat 2017; 28:255-73. [PMID: 28639123 DOI: 10.1007/s12110-017-9290-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Human sleeping arrangements have evolved over time and differ across cultures. The majority of adults share their bed at one time or another with a partner or child, and many also sleep with pets. In fact, around half of dog and cat owners report sharing a bed or bedroom with their pet(s). However, interspecies co-sleeping has been trivialized in the literature relative to interpersonal or human-human co-sleeping, receiving little attention from an interdisciplinary psychological perspective. In this paper, we provide a historical outline of the "civilizing process" that has led to current sociocultural conceptions of sleep as an individual, private function crucial for the functioning of society and the health of individuals. We identify similar historical processes at work in the formation of contemporary constructions of socially normative sleeping arrangements for humans and animals. Importantly, since previous examinations of co-sleeping practices have anthropocentrically framed this topic, the result is an incomplete understanding of co-sleeping practices. By using dogs as an exemplar of human-animal co-sleeping, and comparing human-canine sleeping with adult-child co-sleeping, we determine that both forms of co-sleeping share common factors for establishment and maintenance, and often result in similar benefits and drawbacks. We propose that human-animal and adult-child co-sleeping should be approached as legitimate and socially relevant forms of co-sleeping, and we recommend that co-sleeping be approached broadly as a social practice involving relations with humans and other animals. Because our proposition is speculative and derived from canine-centric data, we recommend ongoing theoretical refinement grounded in empirical research addressing co-sleeping between humans and multiple animal species.
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Abstract
The present study examined differences in social criticism and maternal distress and in household, maternal, and infant characteristics between families who co-slept with their infants beyond 6 months and those who moved their infants to a separate room by 6 months. Data for infant sleeping arrangements, preferences for their sleeping arrangement choices, criticism, depressive and anxiety symptoms, and worries about infant sleep were collected from 103 European American mothers during the infant's first year. Mothers who co-slept with their infants beyond 6 months (persistent co-sleepers) were more likely than mothers who moved their infants to solitary sleep by 6 months to receive criticism and report depression and worry about infants' sleep behavior, even after controlling for preference for the sleep arrangement they used. Interestingly, criticism was associated with maternal depression and worries only for persistent co-sleeping mothers. Further, these mothers had lower income, reported greater space constraints, were younger, single, or unemployed, less likely to have a Bachelor's degree, and more likely to have infants with greater negative affectivity or problematic night waking, compared to mothers of solitary sleeping infants. Adherence to cultural norms regarding infant sleeping arrangements may be a strong predictor of social criticism and maternal well-being.
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24
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Kim E, Lee R, Cain KC. Cosleeping, sleep disturbances, children's behavioral problems, and parenting self-efficacy among Korean American families. J Child Adolesc Psychiatr Nurs 2017; 30:112-120. [PMID: 28983997 DOI: 10.1111/jcap.12182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 08/05/2017] [Accepted: 09/10/2017] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to compare sleep disturbances of children and their mothers, children's behavioral problems, and parenting self-efficacy between Korean American families who coslept and those who did not cosleep. Forty-eight mothers of children between 3 and 8 years of age completed the following surveys: Children's Sleep Habits Questionnaire, Pediatric Symptom Checklist, Pittsburgh Sleep Quality Index, Parenting Self-Efficacy Questionnaire, and Acculturation Rating Scale for Mexican Americans II. Overall, 48% (n = 23) of families coslept, and families with younger children coslept more than families with older children (x2=12.48,p<.05). When the families were divided into non-cosleeping (i.e., rarely) and cosleeping (i.e., sometimes and usually) groups, 100% of the cosleeping children had sleep disturbances compared to 56% of the non-cosleeping children (x2=8.67,p<.01). For mothers, 28% (n = 7) of the non-cosleeping mothers reported sleep disturbances, compared to 52% (n = 12) of the cosleeping mothers (x2=2.93,p=.08). Children's behavioral problems were not different between the two groups (F = 1.78, p = NS). Cosleeping mothers reported lower parenting self-efficacy than non-cosleeping mothers (F = 6.26, p < .05). When providing care to Korean American families with young children, their cosleeping, sleep disturbances, and parenting self-efficacy need to be addressed.
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Affiliation(s)
- Eunjung Kim
- Department of Family and Child Nursing, University of Washington, Seattle, WA, USA
| | - Rachel Lee
- Seattle Public Schools, Seattle, WA, USA
| | - Kevin C Cain
- School of Nursing, University of Washington, Seattle, WA, USA
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25
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Yu XT, Sadeh A, Lam HS, Mindell JA, Li AM. Parental behaviors and sleep/wake patterns of infants and toddlers in Hong Kong, China. World J Pediatr 2017; 13:496-502. [PMID: 28332103 DOI: 10.1007/s12519-017-0025-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 12/17/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND To describe the sleep patterns of children below 36 months in Hong Kong, and evaluate the associations between parental behaviors and childhood sleep/wake patterns. METHODS Parents of 1049 infants and toddlers completed an internet-based expanded version of the Brief Infant Sleep Questionnaire. RESULTS Total sleep duration (P<0.001), frequency (P<0.001) and duration (P<0.001) of nocturnal awakenings decreased with age, whereas the longest sleep duration (P<0.001) and nocturnal sleep duration (P<0.001) increased with age. Children who room- or bed-shared with parents had later bedtimes (P<0.001), but similar sleep duration compared with those who had a separate sleep location. Falling asleep independently was associated with longer nocturnal sleep duration (P<0.001) and less sleep awakenings (P<0.001). Full-time employment of parents was associated with shorter total sleep duration of children (P<0.001). Although breastfeeding was associated with more nocturnal awakenings (P<0.001), no association was detected between breastfeeding and shorter sleep duration in children. CONCLUSIONS As infants and toddlers develop, their sleep consolidates. Falling asleep independently was associated with longer nocturnal sleep duration and fewer sleep awakenings, whereas sleep location was not. This is an important finding, especially for families with limited living space where parent/child room- or bed-sharing cannot be avoided.
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Affiliation(s)
- Xin-Ting Yu
- Department of Pediatrics, The Chinese University of Hong Kong, Hong Kong, China.,Department of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Avi Sadeh
- The School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Hugh Simon Lam
- Department of Pediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, 6/F Lui Che Woo Clinical Sciences Building, Sha Tin, New Territories, Hong Kong, China.
| | - Jodi A Mindell
- Saint Joseph's University and The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Albert Martin Li
- Department of Pediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, 6/F Lui Che Woo Clinical Sciences Building, Sha Tin, New Territories, Hong Kong, China
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26
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Sette S, Baumgartner E, Ferri R, Bruni O. Predictors of sleep disturbances in the first year of life: a longitudinal study. Sleep Med 2017; 36:78-85. [DOI: 10.1016/j.sleep.2017.04.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/29/2017] [Accepted: 04/07/2017] [Indexed: 11/20/2022]
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27
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Paul IM, Hohman EE, Loken E, Savage JS, Anzman-Frasca S, Carper P, Marini ME, Birch LL. Mother-Infant Room-Sharing and Sleep Outcomes in the INSIGHT Study. Pediatrics 2017; 140:peds.2017-0122. [PMID: 28759407 PMCID: PMC5495531 DOI: 10.1542/peds.2017-0122] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/11/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The American Academy of Pediatrics recommends infant-parent room-sharing until age 1. We assessed the association between room-sharing and sleep outcomes. METHODS The Intervention Nurses Start Infants Growing on Healthy Trajectories study is an obesity prevention trial comparing a responsive parenting intervention with a safety control among primiparous mother-infant dyads. Mothers completed the Brief Infant Sleep Questionnaire at 4, 9, 12, and 30 months. Reported sleep duration and overnight behaviors, adjusted for intervention group, were compared among early independent sleepers (own room <4 months), later independent sleepers (own room between 4 and 9 months), and room-sharers at 9 months. RESULTS At 4 months, reported overnight sleep duration was similar between groups, but compared with room-sharers, early independent sleepers had better sleep consolidation (longest stretch: 46 more minutes, P = .02). At 9 months, early independent sleepers slept 40 more minutes nightly than room-sharers and 26 more minutes than later independent sleepers (P = .008). The longest stretch for early independent sleepers was 100 and 45 minutes more than room-sharers and later independent sleepers, respectively (P = .01). At 30 months, infants sleeping independently by 9 months slept >45 more minutes nightly than those room-sharing at 9 months (P = .004). Room-sharers had 4 times the odds of transitioning to bed-sharing overnight at both 4 and 9 months (P < .01 for both). CONCLUSIONS Room-sharing at ages 4 and 9 months is associated with less nighttime sleep in both the short and long-term, reduced sleep consolidation, and unsafe sleep practices previously associated with sleep-related death.
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Affiliation(s)
- Ian M. Paul
- Pediatrics and Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - Emily E. Hohman
- Center for Childhood Obesity Research, Penn State College of Health and Human Development, University Park, Pennsylvania
| | - Eric Loken
- Department of Educational Psychology, University of Connecticut, Storrs, Connecticut
| | - Jennifer S. Savage
- Center for Childhood Obesity Research, Penn State College of Health and Human Development, University Park, Pennsylvania
| | - Stephanie Anzman-Frasca
- Department of Pediatrics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York; and
| | - Patricia Carper
- Pediatrics and Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania
| | - Michele E. Marini
- Center for Childhood Obesity Research, Penn State College of Health and Human Development, University Park, Pennsylvania
| | - Leann L. Birch
- Department of Foods and Nutrition, University of Georgia, Athens, Georgia
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De Bock F, Braun V, Renz-Polster H. Deformational plagiocephaly in normal infants: a systematic review of causes and hypotheses. Arch Dis Child 2017; 102:535-542. [PMID: 28104626 DOI: 10.1136/archdischild-2016-312018] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 11/04/2022]
Abstract
BACKGROUND Deformational plagiocephaly (DP) is one of the most prevalent abnormal findings in infants and a frequent reason for parents to seek paediatric advice. OBJECTIVE To systematically review the literature and identify evidence and hypotheses on the aetiology and determinants of DP in otherwise healthy infants. DESIGN Systematic keyword search in all major biomedical databases to identify peer-reviewed publications reporting (a) empirical research or (b) hypotheses on the aetiology of DP in healthy, term infants. 3150 studies published between 1985 and 2016 and containing relevant keywords were screened. In a two-pronged approach, results were summarised separately for the body of empirical work (22 studies) and the body of hypotheses (110 articles). REVIEW FINDINGS Only a few empirical studies have examined risk factors in non-selected patient populations on a higher grade methodological level. The most commonly reported risk factors were: male gender, supine sleep position, limited neck rotation or preference in head position, first-born child, lower level of activity and lack of tummy time. Agreement between empirical studies was poor for most exposures, including supine sleep position, tummy time and use of car seats. The articles reporting hypotheses on the aetiology of DP cover a wide field of environmental and biological factors, but include little suggestions as to the potential influence of the everyday care environment of the baby. CONCLUSIONS AND RELEVANCE The evidence on the aetiology of DP is fragmentary and heterogeneous. In addition, factors possibly relevant to the development of DP have not been appreciated in the scientific discussion.
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Affiliation(s)
- Freia De Bock
- Mannheim Institute of Public Health, Social and Preventive Medicine, University Medicine Mannheim, Heidelberg University, Mannheim, Germany.,Centre for Child Neurology, Frankfurt am., Germany
| | - Volker Braun
- University Library, University Medicine Mannheim, Medical faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Herbert Renz-Polster
- Mannheim Institute of Public Health, Social and Preventive Medicine, University Medicine Mannheim, Heidelberg University, Mannheim, Germany
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Middlemiss W, Stevens H, Ridgway L, McDonald S, Koussa M. Response-based sleep intervention: Helping infants sleep without making them cry. Early Hum Dev 2017; 108:49-57. [PMID: 28426979 DOI: 10.1016/j.earlhumdev.2017.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/16/2017] [Accepted: 03/21/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Wendy Middlemiss
- Department of Educational Psychology, University of North Texas, Denton, TX, United States.
| | | | - Lael Ridgway
- School of Nursing and Midwifery, La Trobe University, Melbourne, Australia
| | - Susan McDonald
- School of Nursing and Midwifery, La Trobe University, Melbourne, Australia; Mercy Hospital for Women, Melbourne, Australia
| | - Michelle Koussa
- Department of Educational Psychology, University of North Texas, Denton, TX, United States
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Fuentes-Vega S, Castro PJ, Van der Veer R. Co-sleeping versus sleep training: publications with advice for parents. Rev Fac Med 2017. [DOI: 10.15446/revfacmed.v65n2.59514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introducción. Uno de los temas centrales en la crianza de los hijos, y que se sabe tiene muchas posiciones diferentes en las publicaciones, es el sueño en los bebés.Objetivo. Describir las diferentes posiciones de las publicaciones que ofrecen asesoramiento a los padres chilenos sobre el sueño en bebés durante las últimas dos décadas.Materiales y métodos. Se seleccionaron 63 publicaciones disponibles para su compra o de referencia en Chile de las dos últimas décadas, las cuales dan consejos a los padres en relación al sueño de los bebés. Estas publicaciones se analizaron para luego caracterizarlas en relación a las posiciones de colecho y entrenamiento del sueño.Resultados. Se encontró que el 65% de las publicaciones analizadas aconseja, de alguna forma, el colecho y el 76% menciona el entrenamiento del sueño, expresando una tendencia a defender o aceptar la estrategia conocida como “rutinas positivas” en lugar del “dejar llorar”.Conclusiones. Los padres chilenos se enfrentan con información contradictoria: existe un debate sobre la regulación del sueño infantil en Iberoamérica y la opinión de los expertos difiere de la encontrada en muestras anglosajonas.
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Peters EM, Lusher JM, Banbury S, Chandler C. RELATIONSHIPS BETWEEN BREAST-FEEDING, CO-SLEEPING, AND SOMATIC COMPLAINTS IN EARLY CHILDHOOD. Infant Ment Health J 2016; 37:574-83. [PMID: 27552361 DOI: 10.1002/imhj.21583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Revised: 06/16/2016] [Accepted: 06/18/2016] [Indexed: 11/12/2022]
Abstract
The central aim of this study was to expand a limited body of knowledge on the complex relationship between breast-feeding, co-sleeping, and somatic complaints in early childhood. An opportunity sample of 98 parents from the general population with children aged 18 to 60 months consented to participate in the study. Each parent completed a series of questionnaires measuring somatic complaints, sleep problems, co-sleeping, breast-feeding, and demographic factors. Findings indicated that co-sleeping was associated with increased somatic complaints and that breast-feeding associated with decreased somatic complaints. Co-sleeping also was found to be associated with an increase in sleep problems. Boys demonstrated significantly higher levels of sleep problems than did girls. These findings highlight the relationship between co-sleeping during early childhood, which could have implications for prevention, treatment, and intervention regarding somatic complaints and sleep problems in early childhood.
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Abstract
The present longitudinal study addressed the ongoing debate regarding the benefits and risks of infant-parent cosleeping by examining associations between sleep arrangement patterns across the first year of life and infant and parent sleep, marital and family functioning, and quality of mothers' behavior with infants at bedtime. Patterns of infant sleep arrangements across the infants' first year were derived from information obtained from 139 families at 1, 3, 6, 9, and 12 months of infant age in a central Pennsylvania sample. Linkages between these patterns and parent-infant sleep, marital and coparenting stress, and maternal behavior at bedtime (from video-recordings) were assessed. Compared with families whose infants were solitary sleepers by 6 months, persistent cosleeping was associated with sleep disruption in mothers but not in infants, although mothers in persistent cosleeping arrangements reported that their infants had more frequent night awakenings. Persistent cosleeping was also associated with mother reports of marital and coparenting distress, and lower maternal emotional availability with infants at bedtime (from home observations). Persistent cosleeping appeared to be a marker of, though not necessarily a cause of, heightened family stress, although the present design did not enable strong tests of causal processes, and results may be particular to cultures that are not supportive of cosleeping. Findings are discussed in terms of cultural contexts of infant sleep and the need for further investigations into the role of the health of the family system in influencing how parents structure infant sleep. (PsycINFO Database Record
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Affiliation(s)
- Douglas M Teti
- Human Development and Family Studies, The Pennsylvania State University
| | - Mina Shimizu
- Human Development and Family Studies, The Pennsylvania State University
| | - Brian Crosby
- Department of Psychology, The Pennsylvania State University
| | - Bo-Ram Kim
- Human Development and Family Studies, The Pennsylvania State University
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Philbrook LE, Teti DM. Bidirectional associations between bedtime parenting and infant sleep: Parenting quality, parenting practices, and their interaction. J Fam Psychol 2016; 30:431-441. [PMID: 27010601 PMCID: PMC4887423 DOI: 10.1037/fam0000198] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In keeping with transactional conceptualizations of infant sleep development (Sadeh, Tikotzky, & Scher, 2010), the present study was an examination of longitudinal, bidirectional linkages between bedtime parenting (through direct observations of parenting practices and quality) and infant sleep across the first 6 months postpartum. In doing so, we also drew from Darling and Steinberg's (1993) conceptual model to examine parenting quality as a moderator of linkages between specific bedtime practices and infant sleep. Multilevel model analyses revealed that the strongest increases in infant nighttime sleep across the first 6 months occurred among infants of mothers who engaged in low levels of nursing at bedtime. Within-person linkages between mothers' emotional availability (EA) at bedtime, infant distress, and infant sleep were found, such that at time points when mothers were more emotionally available, infants were less distressed and slept more throughout the night. Several moderating effects of maternal EA on linkages between parenting practices and infant sleep were obtained that were consistent with predictions from Darling and Steinberg (1993). Higher maternal EA in combination with less close contact at bedtime was associated with more infant sleep across the night on average, and higher EA in combination with fewer arousing bedtime activities predicted more rapid increases in infant sleep with age. Finally, there was evidence of infant-driven effects, as higher infant nighttime distress predicted lower EA at subsequent time points. Results showcased the complex, reciprocal interplay between parents and infants in the development of infant sleep patterns and parenting behavior during the first 6 months postpartum. (PsycINFO Database Record
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Affiliation(s)
| | - Douglas M Teti
- Department of Human Development and Family Studies, The Pennsylvania State University
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Mileva-Seitz VR, Bakermans-Kranenburg MJ, Battaini C, Luijk MP. Parent-child bed-sharing: The good, the bad, and the burden of evidence. Sleep Med Rev 2017; 32:4-27. [PMID: 27107752 DOI: 10.1016/j.smrv.2016.03.003] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 12/30/2022]
Abstract
The practice of parent and child sharing a sleeping surface, or 'bed-sharing', is one of the most controversial topics in parenting research. The lay literature has popularized and polarized this debate, offering on one hand claims of dangers, and on the other, of benefits - both physical and psychological - associated with bed-sharing. To address the scientific evidence behind such claims, we systematically reviewed 659 published papers (peer-reviewed, editorial pieces, and commentaries) on the topic of parent-child bed-sharing. Our review offers a narrative walkthrough of the many subdomains of bed-sharing research, including its many correlates (e.g., socioeconomic and cultural factors) and purported risks or outcomes (e.g., sudden infant death syndrome, sleep problems). We found general design limitations and a lack of convincing evidence in the literature, which preclude making strong generalizations. A heat-map based on 98 eligible studies aids the reader to visualize world-wide prevalence in bed-sharing and highlights the need for further research in societies where bed-sharing is the norm. We urge for multiple subfields - anthropology, psychology/psychiatry, and pediatrics - to come together with the aim of understanding infant sleep and how nightly proximity to the parents influences children's social, emotional, and physical development.
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Huang XN, Wang HS, Chang JJ, Wang LH, Liu XC, Jiang JX, An L. Feeding methods, sleep arrangement, and infant sleep patterns: a Chinese population-based study. World J Pediatr 2016; 12:66-75. [PMID: 25754749 DOI: 10.1007/s12519-015-0012-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 05/13/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND Findings from prior research into the effect of feeding methods on infant sleep are inconsistent. The objectives of this study were to examine infants' sleep patterns by feeding methods and sleep arrangement from birth to eight months old. METHODS This longitudinal cohort study enrolled 524 pregnant women at 34-41 weeks of gestation and their infants after delivery in 2006 and followed up until eight months postpartum. The study subjects were recruited from nine women and children hospitals in nine cities in China (Beijing, Chongqing, Wuhan, Changsha, Nanning, Xiamen, Xi'an, Jinan, and Hailin). Participating infants were followed up weekly during the first month and monthly from the second to the eighth month after birth. Twenty-four hour sleep diaries recording infants' sleeping and feeding methods were administered based on caregiver's self-report. Multivariable mixed growth curve models were fitted to estimate the effects of feeding methods and sleep arrangement on infants' sleep patterns over time, controlling for maternal and paternal age, maternal and paternal education level, household income, supplementation of complementary food, and infant birth weight and length. RESULTS Exclusively formula fed infants had the greatest sleep percentage/24 h, followed by exclusively breast milk fed infants and partially breast milk fed infants (P<0.01). Night waking followed a similar pattern. However, the differences in sleep percentage and night waking frequency between exclusively formula and exclusively breast milk fed infants weakened over time as infants developed. In addition, compared to infants with bed-sharing sleep arrangement, those with room sharing sleep arrangement had greater daytime and 24-hour infant sleep percentage, whereas those with sleeping alone sleep arrangement had greater nighttime sleep percentage. CONCLUSIONS Our data based on caregiver's self-report suggested that partial breastfeeding and bed-sharing may be associated with less sleep in infants. Health care professionals need to work with parents of newborns to develop coping strategies that will help prevent early weaning of breastfeeding.
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Affiliation(s)
- Xiao-Na Huang
- Department of Children Health, National Center for Maternal and Children Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hui-Shan Wang
- Department of Children Health, National Center for Maternal and Children Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jen-Jen Chang
- Department of Epidemiology, Saint Louis University College for Public Health and Social Justice, St. Louis, MO, USA
| | - Lin-Hong Wang
- The National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Xi-Cheng Liu
- Bronchoscopy Center, Affiliated Children Hospital of Beijing Capital Medical University, Beijing, China
| | - Jing-Xiong Jiang
- Department of Children Health, National Center for Maternal and Children Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lin An
- Department of Public Health, Peking University Health Science Center, Beijing, China
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Volkovich E, Ben-Zion H, Karny D, Meiri G, Tikotzky L. Sleep patterns of co-sleeping and solitary sleeping infants and mothers: a longitudinal study. Sleep Med 2015; 16:1305-1312. [DOI: 10.1016/j.sleep.2015.08.016] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/16/2015] [Accepted: 08/19/2015] [Indexed: 10/23/2022]
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Yoshida M, Shinohara H, Kodama H. Assessment of nocturnal sleep architecture by actigraphy and one-channel electroencephalography in early infancy. Early Hum Dev 2015; 91:519-26. [PMID: 26140905 DOI: 10.1016/j.earlhumdev.2015.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To elucidate characteristic sleep architecture of different nocturnal sleep patterns in early infancy. METHODS Participants were 27 infants at the same conceptional age of 3-4months. Nocturnal sleep of these infants was monitored at home by simultaneously using actigraphy and a one-channel portable EEG device. According to the infants' activity for 6h from sleep onset, each night's sleep pattern was classified into three categories: sleeping through the night (STN), sleeping with weak signals (crying/fuss episodes <10min or fed), and sleeping with strong signals (crying/fuss episodes≧10min). Associations of sleep patterns with sleep variables (percentage of time in sleep stages, pattern of slow-wave sleep (SWS) recurrence, etc.) were investigated. RESULTS Analysis was conducted in 95 nights. STN pattern (n=36) was characterized by suppressed body movements while EEG represented a state of wakefulness. Weak signal pattern (n=27) tended to indicate rich and regular distributions of SWS across the night. Strong signal pattern (n=32) was characterized by reduced sleep time, although the amount of SWS was not reduced to that degree. Exclusively breastfed infants accounted for 78% of weak signal patterns, whereas formula-feeding infants, 67% of STN patterns. In several nights with STN or strong signal pattern, SWS did not occur in >50% of the sleep cycles. Multiple regression analysis showed that exclusive breastfeeding may increase the proportion of SWS in non-REM sleep. CONCLUSIONS Each nocturnal sleep pattern was associated with some sleep architecture, part of which would be attributed to infant's feeding methods.
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Bruni O, Baumgartner E, Sette S, Ancona M, Caso G, Di Cosimo ME, Mannini A, Ometto M, Pasquini A, Ulliana A, Ferri R. Longitudinal study of sleep behavior in normal infants during the first year of life. J Clin Sleep Med 2014; 10:1119-27. [PMID: 25317093 DOI: 10.5664/jcsm.4114] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES To longitudinally examine sleep patterns, habits, and parent-reported sleep problems during the first year of life. METHODS Seven hundred four parent/child pairs participated in a longitudinal cohort study. Structured interview recording general demographic data, feeding habits, intercurrent diseases, family history, sleep habits, and parental evaluation of the infant's sleep carried out at 1, 3, 6, 9, and 12 months. RESULTS Nocturnal, daytime, and total sleep duration showed a high inter-individual variability in the first year of life associated with changes in the first 6 months and stability from 6 to 12 months. Bedtime was at around 22:00 and remained stable at 6, 9, and 12 months of age. Approximately 20% of the infants had more than 2 awakenings and slept more often in the parent bed. Nearly 10% of the infants were considered as having a problematic sleep by parents and this significantly correlated with nocturnal awakenings and difficulties falling asleep. CONCLUSIONS Sleep patterns change during the first year of life but most sleep variables (i.e., sleep latency and duration) show little variation from 6 to 12 months. Our data provide a context for clinicians to discuss sleep issues with parents and suggest that prevention efforts should focus to the first 3-6 months, since sleep patterns show stability from that time point to 12 months.
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Affiliation(s)
- Oliviero Bruni
- Department of Developmental and Social Psychology, Sapienza University, Rome, Italy
| | - Emma Baumgartner
- Department of Developmental and Social Psychology, Sapienza University, Rome, Italy
| | - Stefania Sette
- Department of Developmental and Social Psychology, Sapienza University, Rome, Italy
| | - Mario Ancona
- Psychiatrist, Associazione Analisi Dinamiche di Relazione, Torino, Italy
| | | | | | | | | | | | | | - Raffaele Ferri
- Sleep Research Centre, Department of Neurology, I.C., Oasi Institute (IRCCS), Troina, Italy
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Middlemiss W, Yaure R, Huey EL. Translating research-based knowledge about infant sleep into practice. J Am Assoc Nurse Pract 2014; 27:328-37. [PMID: 25088326 DOI: 10.1002/2327-6924.12159] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 10/14/2013] [Indexed: 11/12/2022]
Abstract
PURPOSE Review infant sleep research with a focus on understanding the elements related to infant safety and infant and maternal well-being during nighttime care. DATA SOURCES This review summarizes current research and addresses the controversies and conflicting outcomes reported in infant nighttime care. This review addresses current literature on infant sleep patterns, as well as factors that influence infant sleep and are consequences of different care routines. Conversation points are provided to help nurse practitioners (NPs) address safety and practice concerns. CONCLUSIONS Shared information can help parents provide a safe and healthy environment for infants and help to facilitate communication ties between the healthcare providers and the families. IMPLICATIONS FOR PRACTICE NPs need to help parents understand infant sleep patterns norms, what is current knowledge about infant nightwakings and parental presence, as well as about approaches to altering infant sleep patterns. Integrating this knowledge with parent preferences that are influenced by cultural practices and individual differences is crucial in helping parents develop a strong sense of competence and comfort with their choices and behaviors.
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Affiliation(s)
| | - Robin Yaure
- The Pennsylvania State University, Mont Alto, Pennsylvania
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Lee S, Rhie S, Chae KY. Depression and marital intimacy level in parents of infants with sleep onset association disorder: a preliminary study on the effect of sleep education. Korean J Pediatr 2013; 56:211-7. [PMID: 23741235 PMCID: PMC3668202 DOI: 10.3345/kjp.2013.56.5.211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 09/17/2012] [Accepted: 10/15/2012] [Indexed: 11/27/2022]
Abstract
PURPOSE Sleep onset association disorder (SOAD) is a form of behavioral insomnia observed in children that is caused by inappropriate sleep training. SOAD typically disturbs the sleep of not only infants and children but also their parents. We investigated levels of depression and marital intimacy among parents of infants with typical SOAD, to understand the influence of SOAD on family dynamics, as well as examine ways for improving depression and marital intimacy through behavioral training. METHODS Depression and marital intimacy were assessed using the Beck Depression Inventory (BDI) and Waring Intimacy Questionnaire (WIQ). These measures were administered to 65 parents of infants (n=50) diagnosed with SOAD. We conducted sleep education and behavioral training for the parents and compared levels of depression and marital intimacy after 2-6 weeks of training. RESULTS The 65 parents consisted of 50 mothers and 15 fathers. Depressive symptoms were higher among mothers than fathers (P =0.007). Marital intimacy was negatively correlated with depressive symptoms. Twenty-six parents were assessed again after sleep training. We found that mothers' depressive symptoms and marital intimacy improved post training. CONCLUSION SOAD can be detrimental to both infants and parents, especially for parents who sleep with their infants. For instance, disruption of sleep patterns in such parents can reduce marital intimacy. However, behavioral modification is an effective treatment for infants with frequent nighttime waking, as well as for diminishing the depressive symptoms of sleep-deprived parents.
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Affiliation(s)
- Sihyoung Lee
- Department of Pediatrics, CHA Bundang Medical Center, CHA University, Seongnam, Korea
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Teti DM, Crosby B. Maternal Depressive Symptoms, Dysfunctional Cognitions, and Infant Night Waking: The Role of Maternal Nighttime Behavior. Child Dev 2012; 83:939-53. [DOI: 10.1111/j.1467-8624.2012.01760.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tollenaar MS, Beijers R, Jansen J, Riksen-Walraven JMA, de Weerth C. Solitary sleeping in young infants is associated with heightened cortisol reactivity to a bathing session but not to a vaccination. Psychoneuroendocrinology 2012; 37:167-77. [PMID: 21530088 DOI: 10.1016/j.psyneuen.2011.03.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 03/26/2011] [Accepted: 03/27/2011] [Indexed: 11/30/2022]
Abstract
BACKGROUND In this prospective longitudinal study, we investigated the relation between sleeping arrangements and infant cortisol reactivity to stressors in the first two post-natal months. Co-sleeping, as compared to solitary sleeping, is hypothesized to provide more parental external stress regulation by night, thus reducing general stress sensitivity. We therefore expected lower cortisol reactivity to stress in infants who co-slept more regularly. METHODS Participants were 163 mothers and infants from uncomplicated, singleton pregnancies. Mothers completed daily diaries on sleeping arrangements in the first 7 weeks of life. Co-sleeping was defined as sleeping in the parents' bedroom (i.e. own or parents' bed). Cortisol reactivity was measured twice: to a mild physical stressor (bathing session) at 5 weeks of age and to a mild pain stressor (vaccination) at 2 months of age. RESULTS Infants with a solitary sleeping arrangement in their first month of life showed a heightened cortisol response to the bathing session at 5 weeks compared to infants that co-slept regularly. This effect was not explained by breastfeeding practices, maternal caregiving behavior, or infants' night waking and sleep duration. No effects were found of co-sleeping on the cortisol response to the vaccination at 2 months. CONCLUSIONS The results suggest that solitary sleeping in the first month of life is associated with heightened sensitivity of the HPA-axis to a mild stressor, possibly due to less nocturnal parental availability as external stress regulator. Whether this effect continues in later life, remains to be investigated.
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Affiliation(s)
- M S Tollenaar
- Radboud University Nijmegen, Behavioural Science Institute, Department of Developmental Psychology, Montessorilaan 3, 6525 HR Nijmegen, The Netherlands
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Abstract
Night awakenings are a normative part of early development. In the first year, night awakenings are associated with birth order, feeding route, sleep aid use, sleep location, infant temperament and development, infant-parent attachment, family socioeconomics, and cultural norms. In the second year, additional factors build on these foundational features, including parenting practices and object attachment. As children grow, contextual factors like preschool entry or changes in family member status may influence the continuation or exacerbation of awakenings. Future research should consider the multitude of factors that influence not only awakenings but also parental perceptions, family dynamics, and cultural norms.
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Mindell JA, Sadeh A, Kohyama J, How TH. Parental behaviors and sleep outcomes in infants and toddlers: A cross-cultural comparison. Sleep Med 2010; 11:393-9. [DOI: 10.1016/j.sleep.2009.11.011] [Citation(s) in RCA: 201] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2009] [Revised: 10/17/2009] [Accepted: 11/01/2009] [Indexed: 11/26/2022]
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Santos IS, Mota DM, Matijasevich A, Barros AJD, Barros FCF. Bed-sharing at 3 months and breast-feeding at 1 year in southern Brazil. J Pediatr 2009; 155:505-9. [PMID: 19595369 PMCID: PMC3420018 DOI: 10.1016/j.jpeds.2009.04.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 02/16/2009] [Accepted: 04/16/2009] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the association between bedsharing at age 3 months and breastfeeding (BF) at age 12 months. STUDY DESIGN Almost all children born in Pelotas, Brazil in 2004 (99.2%) were enrolled in a cohort study. At birth, age 3 months, and age 12 months, mothers were interviewed to gather information on sociodemographic, reproductive, BF, and bedsharing characteristics. Bedsharing was defined as habitual sharing of a bed between mother and child for the entire night or part of the night. The analysis was limited to children from single births who were breastfed at 3 months. Multivariate analyses were carried out using Poisson regression. RESULTS Of 4231 live births, 2889 were breastfed at age 3 months. The prevalence of BF at age 12 months was 59.2% in the children who bedshared at 3 months and 44% in those who did not (adjusted prevalence ratio [PR] for weaning= 0.75; 95% confidence interval [CI] = 0.69-0.81; P < .001). Among children who were exclusively breastfed at 3 months, 75.1% of those who also bedshared were still breastfed at age 12 months, versus 52.3% of those who did not bedshare (adjusted PR = 0.63; 95% CI = 0.53- 0.75; P < .001). The adjusted PR was 0.74 (95% CI = 0.60-0.90; P = .003) in children who were predominantly breastfed and 0.83 (95% CI = 0.76-0.90; P < .001) in those who were partially breastfed. CONCLUSIONS Bedsharing at 3 months protected against weaning up to age 12 months.
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Affiliation(s)
- Iná S Santos
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil.
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Chianese J, Ploof D, Trovato C, Chang JC. Inner-city caregivers' perspectives on bed sharing with their infants. Acad Pediatr 2009; 9:26-32. [PMID: 19329088 DOI: 10.1016/j.acap.2008.11.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2007] [Revised: 11/17/2008] [Accepted: 11/18/2008] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To understand parents' motivations for bed sharing with their infants aged 1-6 months, their beliefs about safety concerns, and their attitudes about bed-sharing advice. METHODS We conducted 4 focus groups with primary caregivers of infants ages 1-6 months who regularly shared beds with their infants. We recruited participants from an inner-city primary care center in Pittsburgh, serving primarily African American families who received medical assistance. Discussions were audiotaped and transcribed. Two investigators coded the transcripts and identified themes in an iterative process to achieve agreement between coders. RESULTS A total of 28 caregivers aged 17-50 participated. The majority were African American (86%), female (93%), single (50%), and high school graduates (71%). Eleven percent of participants breast-fed their infants. We identified 5 themes, common to all groups, to explain parents' motivations for bed sharing: 1) better caregiver and infant sleep, 2) convenience, 3) tradition, 4) child safety, and 5) parent and child emotional needs. Parents expressed divergent views about the safety of bed sharing: 1) ambivalence regarding balancing risks of overlaying and suffocation with benefits of bed sharing, or 2) assertion that bed sharing poses no risks for their child. Common to all groups was the finding that clinicians' advice against bed sharing did not influence parents' decision, but advice to increase safety when bed sharing would be appreciated. CONCLUSIONS Parents' motivation to bed share outweighed the concerns and the warnings of others. An understanding of parents' perspectives on bed sharing should inform counseling to promote safe sleeping practices.
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