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Kharmats AY, Popp C, Hu L, Berube L, Curran M, Wang C, Pompeii ML, Li H, Bergman M, St-Jules DE, Segal E, Schoenthaler A, Williams N, Schmidt AM, Barua S, Sevick MA. A randomized clinical trial comparing low-fat with precision nutrition-based diets for weight loss: impact on glycemic variability and HbA1c. Am J Clin Nutr 2023; 118:443-451. [PMID: 37236549 PMCID: PMC10447469 DOI: 10.1016/j.ajcnut.2023.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Recent studies have demonstrated considerable interindividual variability in postprandial glucose response (PPGR) to the same foods, suggesting the need for more precise methods for predicting and controlling PPGR. In the Personal Nutrition Project, the investigators tested a precision nutrition algorithm for predicting an individual's PPGR. OBJECTIVE This study aimed to compare changes in glycemic variability (GV) and HbA1c in 2 calorie-restricted weight loss diets in adults with prediabetes or moderately controlled type 2 diabetes (T2D), which were tertiary outcomes of the Personal Diet Study. METHODS The Personal Diet Study was a randomized clinical trial to compare a 1-size-fits-all low-fat diet (hereafter, standardized) with a personalized diet (hereafter, personalized). Both groups received behavioral weight loss counseling and were instructed to self-monitor diets using a smartphone application. The personalized arm received personalized feedback through the application to reduce their PPGR. Continuous glucose monitoring (CGM) data were collected at baseline, 3 mo and 6 mo. Changes in mean amplitude of glycemic excursions (MAGEs) and HbA1c at 6 mo were assessed. We performed an intention-to-treat analysis using linear mixed regressions. RESULTS We included 156 participants [66.5% women, 55.7% White, 24.1% Black, mean age 59.1 y (standard deviation (SD) = 10.7 y)] in these analyses (standardized = 75, personalized = 81). MAGE decreased by 0.83 mg/dL per month for standardized (95% CI: 0.21, 1.46 mg/dL; P = 0.009) and 0.79 mg/dL per month for personalized (95% CI: 0.19, 1.39 mg/dL; P = 0.010) diet, with no between-group differences (P = 0.92). Trends were similar for HbA1c values. CONCLUSIONS Personalized diet did not result in an increased reduction in GV or HbA1c in patients with prediabetes and moderately controlled T2D, compared with a standardized diet. Additional subgroup analyses may help to identify patients who are more likely to benefit from this personalized intervention. This trial was registered at clinicaltrials.gov as NCT03336411.
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Affiliation(s)
- Anna Y Kharmats
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Collin Popp
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Lu Hu
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Lauren Berube
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States.
| | - Margaret Curran
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Chan Wang
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Mary Lou Pompeii
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Huilin Li
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Michael Bergman
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States; Division of Endocrinology, Diabetes and Metabolism, New York University Grossman School of Medicine, New York, NY, United States
| | - David E St-Jules
- Department of Nutrition, University of Nevada, Reno, Reno, NV, United States
| | - Eran Segal
- Department of Computer Science and Applied Math, Weizmann Institute of Science, Rehovot, Israel
| | - Antoinette Schoenthaler
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Natasha Williams
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States
| | - Ann Marie Schmidt
- Diabetes Research Program, Department of Medicine, New York University Langone Health, New York, NY, United States
| | - Souptik Barua
- Division of Precision Medicine, Department of Medicine, New York University Langone Health, New York, NY, United States
| | - Mary Ann Sevick
- Center for Healthful Behavior Change, Institute for Excellence in Health Equity, New York University Langone Health, New York, NY, United States; Department of Population Health, New York University Grossman School of Medicine, New York, NY, United States; Division of Endocrinology, Diabetes and Metabolism, New York University Grossman School of Medicine, New York, NY, United States
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Kharmats AY, Martinez TR, Belli H, Zhao Y, Mann DM, Schoenthaler AM, Voils CI, Blecker S. Self-reported adherence and reasons for nonadherence among patients with low proportion of days covered for antihypertension medications. J Manag Care Spec Pharm 2023; 29:557-563. [PMID: 37121253 PMCID: PMC10387969 DOI: 10.18553/jmcp.2023.29.5.557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
BACKGROUND: Incorporation of pharmacy fill data into the electronic health record has enabled calculations of medication adherence, as measured by proportion of days covered (PDC), to be displayed to clinicians. Although PDC values help identify patients who may be nonadherent to their medications, it does not provide information on the reasons for medication-taking behaviors. OBJECTIVE: To characterize self-reported adherence status to antihypertensive medications among patients with low refill medication adherence. Our secondary objective was to identify the most common reasons for nonadherence and examine the patient sociodemographic characteristics associated with these barriers. METHODS: Participants were adult patients seen in primary care clinics of a large, urban health system and on antihypertensive therapy with a PDC of less than 80% based on 6-month linked electronic health record-pharmacy fill data. We administered a validated medication adherence screener and a survey assessing reasons for antihypertensive medication nonadherence. We used descriptive statistics to characterize these data and logistic and Poisson regression models to assess the relationship between sociodemographic characteristics and adherence barriers. RESULTS: The survey was completed by 242 patients (57% female; 61.2% White; 79.8% not Latino/a or Hispanic). Of these patients, 45% reported missing doses of their medications in the last 7 days. In addition, 48% endorsed having at least 1 barrier to adherence and 38.4% endorsed 2 or more barriers. The most common barriers were being busy and having difficulty remembering to take medications. Compared with White participants, Black participants (incident rate ratio = 2.49; 95% CI = 1.93-3.22) and participants of other races (incident rate ratio = 2.16; 95% CI = 1.62-2.89) experienced a greater number of barriers. CONCLUSIONS: Nearly half of patients with low PDC reported nonadherence in the prior week, suggesting PDC can be used as a screening tool. Augmenting PDC with brief self-report tools can provide insights into the reasons for nonadherence. DISCLOSURES: Dr Kharmats, Ms Martinez, Dr Belli, Ms Zhao, Dr Mann, Dr Schoenthaler, and Dr Blecker received grants from the National Institute of Health/National Heart, Lung, Blood Institute. Dr Voils holds a license by Duke University for the DOSE-Nonadherence measure and is a consultant for New York University Grossman School of Medicine. This research was supported by the NIH (R01HL156355). Dr Kharmats received a postdoctoral training grant from the National Institutes of Health (5T32HL129953-04). Dr Voils was supported by a Research Career Scientist award from the Health Services Research & Development Service of the Department of Veterans Affairs (RCS 14-443). The content of this manuscript is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or the United States Government.
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Affiliation(s)
- Anna Y Kharmats
- Departments of Population Health, Grossman School of Medicine, New York University
- Institute for Excellence in Health Equity, NYU Langone Health, NY
- Office of Disease Prevention, National Institute of Health, Bethesda, MD
| | - Tiffany R Martinez
- Departments of Population Health, Grossman School of Medicine, New York University
| | - Hayley Belli
- Departments of Population Health, Grossman School of Medicine, New York University
| | - Yunan Zhao
- Departments of Population Health, Grossman School of Medicine, New York University
| | - Devin M Mann
- Departments of Population Health, Grossman School of Medicine, New York University
- Departments of Population Health and Medicine, Grossman School of Medicine, New York University
- Institute for Excellence in Health Equity and Medical Center Information Technology, NYU Langone Health, NY
| | - Antoinette M Schoenthaler
- Departments of Population Health, Grossman School of Medicine, New York University
- Departments of Population Health and Medicine, Grossman School of Medicine, New York University
- Institute for Excellence in Health Equity, NYU Langone Health, NY
| | - Corrine I Voils
- William S. Middleton Memorial Veterans Hospital, Madison, WI, and Department of Surgery, School of Medicine and Public Health, University of Wisconsin, Madison
| | - Saul Blecker
- Departments of Population Health, Grossman School of Medicine, New York University
- Departments of Population Health and Medicine, Grossman School of Medicine, New York University
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St-Jules DE, Hu L, Woolf K, Wang C, Goldfarb DS, Katz SD, Popp C, Williams SK, Li H, Jagannathan R, Ogedegbe O, Kharmats AY, Sevick MA. An Evaluation of Alternative Technology-Supported Counseling Approaches to Promote Multiple Lifestyle Behavior Changes in Patients With Type 2 Diabetes and Chronic Kidney Disease. J Ren Nutr 2023; 33:35-44. [PMID: 35752400 PMCID: PMC9772360 DOI: 10.1053/j.jrn.2022.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/10/2022] [Accepted: 05/27/2022] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVES Although technology-supported interventions are effective for reducing chronic disease risk, little is known about the relative and combined efficacy of mobile health strategies aimed at multiple lifestyle factors. The purpose of this clinical trial is to evaluate the efficacy of technology-supported behavioral intervention strategies for managing multiple lifestyle-related health outcomes in overweight adults with type 2 diabetes (T2D) and chronic kidney disease (CKD). DESIGN AND METHODS Using a 2 × 2 factorial design, adults with excess body weight (body mass index ≥27 kg/m2, age ≥40 years), T2D, and CKD stages 2-4 were randomized to an advice control group, or remotely delivered programs consisting of synchronous group-based education (all groups), plus (1) Social Cognitive Theory-based behavioral counseling and/or (2) mobile self-monitoring of diet and physical activity. All programs targeted weight loss, greater physical activity, and lower intakes of sodium and phosphorus-containing food additives. RESULTS Of 256 randomized participants, 186 (73%) completed 6-month assessments. Compared to the ADVICE group, mHealth interventions did not result in significant changes in weight loss, or urinary sodium and phosphorus excretion. In aggregate analyses, groups receiving mobile self-monitoring had greater weight loss at 3 months (P = .02), but between 3 and 6 months, weight losses plateaued, and by 6 months, the differences were no longer statistically significant. CONCLUSIONS When engaging patients with T2D and CKD in multiple behavior changes, self-monitoring diet and physical activity demonstrated significantly larger short-term weight losses. Theory-based behavioral counseling alone was no better than baseline advice and demonstrated no interaction effect with self-monitoring.
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Affiliation(s)
- David E St-Jules
- Department of Nutrition, University of Nevada, Reno, Reno, Nevada
| | - Lu Hu
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York
| | - Kathleen Woolf
- Department of Nutrition and Food Studies, New York University Steinhardt, New York, New York
| | - Chan Wang
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York
| | - David S Goldfarb
- Department of Medicine, Grossman School of Medicine, New York University, New York, New York
| | - Stuart D Katz
- Department of Medicine, Grossman School of Medicine, New York University, New York, New York
| | - Collin Popp
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York
| | - Stephen K Williams
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York; Department of Medicine, Grossman School of Medicine, New York University, New York, New York
| | - Huilin Li
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York
| | - Ram Jagannathan
- Division of Hospital Medicine, Emory University, Atlanta, Georgia
| | - Olugbenga Ogedegbe
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York; Institute for Excellence in Health Equity, Grossman School of Medicine, New York University, New York, New York
| | - Anna Y Kharmats
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York
| | - Mary Ann Sevick
- Department of Population Health, Grossman School of Medicine, New York University, New York, New York; Department of Medicine, Grossman School of Medicine, New York University, New York, New York.
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Popp CJ, Hu L, Kharmats AY, Curran M, Berube L, Wang C, Pompeii ML, Illiano P, St-Jules DE, Mottern M, Li H, Williams N, Schoenthaler A, Segal E, Godneva A, Thomas D, Bergman M, Schmidt AM, Sevick MA. Effect of a Personalized Diet to Reduce Postprandial Glycemic Response vs a Low-fat Diet on Weight Loss in Adults With Abnormal Glucose Metabolism and Obesity: A Randomized Clinical Trial. JAMA Netw Open 2022; 5:e2233760. [PMID: 36169954 PMCID: PMC9520362 DOI: 10.1001/jamanetworkopen.2022.33760] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Interindividual variability in postprandial glycemic response (PPGR) to the same foods may explain why low glycemic index or load and low-carbohydrate diet interventions have mixed weight loss outcomes. A precision nutrition approach that estimates personalized PPGR to specific foods may be more efficacious for weight loss. OBJECTIVE To compare a standardized low-fat vs a personalized diet regarding percentage of weight loss in adults with abnormal glucose metabolism and obesity. DESIGN, SETTING, AND PARTICIPANTS The Personal Diet Study was a single-center, population-based, 6-month randomized clinical trial with measurements at baseline (0 months) and 3 and 6 months conducted from February 12, 2018, to October 28, 2021. A total of 269 adults aged 18 to 80 years with a body mass index (calculated as weight in kilograms divided by height in meters squared) ranging from 27 to 50 and a hemoglobin A1c level ranging from 5.7% to 8.0% were recruited. Individuals were excluded if receiving medications other than metformin or with evidence of kidney disease, assessed as an estimated glomerular filtration rate of less than 60 mL/min/1.73 m2 using the Chronic Kidney Disease Epidemiology Collaboration equation, to avoid recruiting patients with advanced type 2 diabetes. INTERVENTIONS Participants were randomized to either a low-fat diet (<25% of energy intake; standardized group) or a personalized diet that estimates PPGR to foods using a machine learning algorithm (personalized group). Participants in both groups received a total of 14 behavioral counseling sessions and self-monitored dietary intake. In addition, the participants in the personalized group received color-coded meal scores on estimated PPGR delivered via a mobile app. MAIN OUTCOMES AND MEASURES The primary outcome was the percentage of weight loss from baseline to 6 months. Secondary outcomes included changes in body composition (fat mass, fat-free mass, and percentage of body weight), resting energy expenditure, and adaptive thermogenesis. Data were collected at baseline and 3 and 6 months. Analysis was based on intention to treat using linear mixed modeling. RESULTS Of a total of 204 adults randomized, 199 (102 in the personalized group vs 97 in the standardized group) contributed data (mean [SD] age, 58 [11] years; 133 women [66.8%]; mean [SD] body mass index, 33.9 [4.8]). Weight change at 6 months was -4.31% (95% CI, -5.37% to -3.24%) for the standardized group and -3.26% (95% CI, -4.25% to -2.26%) for the personalized group, which was not significantly different (difference between groups, 1.05% [95% CI, -0.40% to 2.50%]; P = .16). There were no between-group differences in body composition and adaptive thermogenesis; however, the change in resting energy expenditure was significantly greater in the standardized group from 0 to 6 months (difference between groups, 92.3 [95% CI, 0.9-183.8] kcal/d; P = .05). CONCLUSIONS AND RELEVANCE A personalized diet targeting a reduction in PPGR did not result in greater weight loss compared with a low-fat diet at 6 months. Future studies should assess methods of increasing dietary self-monitoring adherence and intervention exposure. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03336411.
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Affiliation(s)
- Collin J. Popp
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Lu Hu
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Anna Y. Kharmats
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Margaret Curran
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Lauren Berube
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Chan Wang
- Division of Biostatistics, Department of Population Health, NYU Langone Health, New York, New York
| | - Mary Lou Pompeii
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Paige Illiano
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | | | - Meredith Mottern
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Huilin Li
- Division of Biostatistics, Department of Population Health, NYU Langone Health, New York, New York
| | - Natasha Williams
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Antoinette Schoenthaler
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
| | - Eran Segal
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Anastasia Godneva
- Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Diana Thomas
- Department of Mathematical Sciences, United States Military Academy, West Point, New York
| | - Michael Bergman
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Langone Health, New York, New York
| | - Ann Marie Schmidt
- Diabetes Research Program, Department of Medicine, NYU Langone Health, New York, New York
| | - Mary Ann Sevick
- Institute for Excellence in Health Equity, Center for Healthful Behavior Change, Department of Population Health, NYU Langone Health, New York, New York
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Langone Health, New York, New York
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Kharmats AY, Corrigan AE, Curriero FC, Neff R, Caulfield LE, Kennedy CE, Whitley J, Montazer JS, Hu L, Gittelsohn J. Geospatial Food Environment Exposure and Obesity among Low Income Baltimore City Children: Associations Differ by Data Source and Processing Method. Journal of Hunger & Environmental Nutrition 2022. [DOI: 10.1080/19320248.2022.2090882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Anna Y. Kharmats
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Anne E. Corrigan
- Spatial Science for Public Health Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - Frank C. Curriero
- Department of Epidemiology, Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Roni Neff
- Department of Environmental Health and Engineering, Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Laura E. Caulfield
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Caitlin E. Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jessica Whitley
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Jaleh S. Montazer
- Department of Health Policy and Management, University of Maryland School of Public Health, College Park, Maryland, USA
| | - Lu Hu
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Joel Gittelsohn
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Kharmats AY, Wang C, Fuentes L, Hu L, Kline T, Welding K, Cheskin LJ. Monday-focused tailored rapid interactive mobile messaging for weight management 2 (MTRIMM2): results from a randomized controlled trial. Mhealth 2022; 8:1. [PMID: 35178432 PMCID: PMC8800204 DOI: 10.21037/mhealth-21-3] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 06/12/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Text-messaging interventions can reach many individuals across a range of socioeconomic groups, at a low cost. Few randomized controlled trials (RCTs) of text-messaging weight loss interventions have been conducted in United States. METHODS From September of 2016 to September of 2018, we conducted a two-parallel group, superiority, RCT of a 16-week text-messaging, weight loss intervention in Baltimore, Maryland, in overweight and obese adults younger than 71, who were able to receive text-messages. Our objective was to assess the effect of receiving the message content only (in printed documents distributed at baseline and week 8), versus receiving messages via short messaging service (SMS) on weight loss (primary outcome), body mass index, perceived exercise benefits and barriers, self-efficacy, and physical activity (PA). The random allocation sequence was equally balanced intervention groups by gender and age groups. Participants were randomized after the baseline assessment. Then, participants and most study staff were unblinded. Follow-up assessments were conducted at 8-, 16-, and 42-week post randomization. We performed intention-to-treat analysis using mixed linear regression models. RESULTS Of the 155 adults randomized (printed messages =77, SMS =78), 87.1% were women, 53.5% were African Americans, and 93.5% non-Hispanic. Participants who completed at least one follow-up assessment were included in regression analyses (n=145, printed messages =74, SMS =71). Compared to baseline, at the 42-week assessment, the average percent weight loss was 1.23 for the SMS group (P=0.006) and 0.86 for the printed messages group (P=0.047). Both groups experienced small reductions in weight (printed messages: -0.96 kg, P=0.022; SMS: -1.19 kg, P=0.006), BMI (printed messages: -0.32, P=0.035; SMS: -0.52, P=0.002), and percent energy from fat consumption (printed messages: -1.43, P=0.021; SMS: -2.14, P≤0.001). No statistically significant between groups differences were detected for any of the study outcomes. SMS response rates were not statistically significantly associated with study outcomes. No adverse events were reported. CONCLUSIONS A semi-tailored SMS weight loss intervention among overweight and obese adults was not statistically superior in efficacy to paper-based messaging. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04506996.
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Affiliation(s)
- Anna Y. Kharmats
- Bloomberg School of Public Health, Department of International Health, Johns Hopkins University, Baltimore, MD, USA
- New York University Grossman School of Medicine, Department of Population Health, New York, NY, USA
| | - Chan Wang
- New York University Grossman School of Medicine, Department of Population Health, New York, NY, USA
| | - Laura Fuentes
- Bloomberg School of Public Health, Department of Health, Behavior & Society, Baltimore, MD, USA
| | - Lu Hu
- New York University Grossman School of Medicine, Department of Population Health, New York, NY, USA
| | - Tina Kline
- Bloomberg School of Public Health, Department of Health, Behavior & Society, Baltimore, MD, USA
| | - Kevin Welding
- Bloomberg School of Public Health, Department of Health, Behavior & Society, Baltimore, MD, USA
| | - Lawrence J. Cheskin
- George Mason University, College of Health and Human Services, Department of Nutrition and Food Studies, Fairfax, VA, USA
- Johns Hopkins School of Medicine, Department of Medicine, Baltimore, MD, USA
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Affiliation(s)
- Anna Y Kharmats
- Department of Population Health, New York University Grossman School of Medicine, New York
| | - Scott J Pilla
- Department of Medicine, Division of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland
| | - Mary Ann Sevick
- Department of Population Health, New York University Grossman School of Medicine, New York
- Department of Medicine, New York University Grossman School of Medicine, New York
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Foti KE, Perez CL, Knapp EA, Kharmats AY, Sharfman AS, Arteaga SS, Moore LV, Bennett WL. Identification of Measurement Needs to Prevent Childhood Obesity in High-Risk Populations and Environments. Am J Prev Med 2020; 59:746-754. [PMID: 32919827 PMCID: PMC8722431 DOI: 10.1016/j.amepre.2020.05.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Received: 02/11/2020] [Revised: 04/14/2020] [Accepted: 05/07/2020] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Children at highest obesity risk include those from certain racial/ethnic groups, from low-income families, with disabilities, or living in high-risk communities. However, a 2013 review of the National Collaborative for Childhood Obesity Research Measures Registry identified few measures focused on children at highest obesity risk. The objective is to (1) identify individual and environmental measures of diet and physical activity added to the Measures Registry since 2013 used among high-risk populations or settings and (2) describe methods for their development, adaptation, or validation. METHODS Investigators screened references in the Measures Registry from January 2013 to September 2017 (n=351) and abstracted information about individual and environmental measures developed for, adapted for, or applied to high-risk populations or settings, including measure type, study population, adaptation and validation methods, and psychometric properties. RESULTS A total of 38 measures met inclusion criteria. Of these, 30 assessed individual dietary (n=25) or physical activity (n=13) behaviors, and 11 assessed the food (n=8) or physical activity (n=7) environment. Of those, 17 measures were developed for, 9 were applied to (i.e., developed in a general population and used without modification), and 12 were adapted (i.e., modified) for high-risk populations. Few measures were used in certain racial/ethnic groups (i.e., American Indian/Alaska Native, Hawaiian/Pacific Islander, and Asian), children with disabilities, and rural (versus urban) communities. CONCLUSIONS Since 2013, a total of 38 measures were added to the Measures Registry that were used in high-risk populations. However, many of the previously identified gaps in population coverage remain. Rigorous, community-engaged methodologic research may help researchers better adapt and validate measures for high-risk populations.
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Affiliation(s)
- Kathryn E Foti
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Crystal L Perez
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Emily A Knapp
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Anna Y Kharmats
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - S Sonia Arteaga
- Environmental influences on Child Health Outcomes, Office of the Director, NIH, formerly at the Division of Cardiovascular Diseases, National, Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland
| | - Latetia V Moore
- Division of Nutrition, Physical Activity, and Obesity, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Wendy L Bennett
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Epidemiology and Population, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Family and Reproductive Health, Johns Hopkins University School of Medicine, Baltimore, Maryland.
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9
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Han E, Jones-Smith J, Surkan PJ, Kharmats AY, Vedovato GM, Trude ACB, Anderson Steeves E, Gittelsohn J. Low-income African-American adults share weight status, food-related psychosocial factors and behaviours with their children. Obes Sci Pract 2016; 1:78-87. [PMID: 27774251 PMCID: PMC5064723 DOI: 10.1002/osp4.10] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/28/2015] [Accepted: 09/04/2015] [Indexed: 11/20/2022] Open
Abstract
Objective This study aims to examine the extent to which low‐income African‐American children's weight status, psychosocial characteristics and food‐related behaviours are associated with that of their adult caregivers. Methods Cross‐sectional data from baseline evaluation of B'More Healthy Communities for Kids obesity prevention trial were used. Outcomes of interest were children's overweight and/or obesity status, food‐related self‐efficacy, knowledge, intentions and healthier/less healthy food acquisition scores. The primary exposures were adult caregiver's overweight and/or obesity status, their psychosocial factors and food acquisition scores. Multiple logistic regression analyses were used to assess associations. Results Children had higher odds of overweight or obesity if they had an overweight/obese caregiver (odds ratio [OR] 4.04, 95% confidence interval [95%CI] 1.59–10.28) or an obese caregiver (OR 2.50, 95%CI 1.39–4.51). Having a caregiver in the highest quartile of self‐efficacy, food intentions and healthy food acquisition patterns was associated with higher odds of their child also having a higher score on these factors (self‐efficacy: OR 3.77 [95%CI 1.76–8.04]; food intentions: OR 1.13 [95%CI 1.01–1.27]; and healthy food acquisition: OR 2.19 [95%CI 1.05–4.54]). Conclusions Child and adult caregiver weight status and psychosocial characteristics were positively associated in this low‐income, urban population. These findings may help inform obesity treatment or prevention programmes and interventions aimed at parents and families.
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Affiliation(s)
- E Han
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - J Jones-Smith
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - P J Surkan
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - A Y Kharmats
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - G M Vedovato
- Health and Society Institute Federal University of São Paulo Santos SP Brazil
| | - A C B Trude
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - E Anderson Steeves
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
| | - J Gittelsohn
- Department of International Health Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
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Gittelsohn J, Anderson Steeves E, Mui Y, Kharmats AY, Hopkins LC, Dennis D. B'More Healthy Communities for Kids: design of a multi-level intervention for obesity prevention for low-income African American children. BMC Public Health 2014; 14:942. [PMID: 25209072 PMCID: PMC4168194 DOI: 10.1186/1471-2458-14-942] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [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: 05/20/2014] [Accepted: 09/03/2014] [Indexed: 11/17/2022] Open
Abstract
Background Childhood obesity rates in the U.S. have reached epidemic proportions, and an urgent need remains to identify evidence-based strategies for prevention and treatment. Multi-level, multi-component interventions are needed due to the multi-factorial nature of obesity, and its proven links to both the social and built environment. However, there are huge gaps in the literature related to doing these kinds of interventions among low-income, urban, minority groups. Methods The B’More Healthy Communities for Kids (BHCK) intervention is a multi-level, multi-component intervention, targeting low-income African American youth ages 10–14 and their families in Baltimore, Maryland. This intervention prevents childhood obesity by working at multiple levels of the food and social environments to increase access to, demand for, and consumption of healthier foods. BHCK works to create systems-level change by partnering with city policy-makers, multiple levels of the food environment (wholesalers, corner stores, carryout restaurants), and the social environment (peers and families). In addition, extensive evaluation will be conducted at each level of the intervention to assess intervention effectiveness via both process and impact measures. Discussion This project is novel in multiple ways, including: the inclusion of stakeholders at multiple levels (policy, institutional, and at multiple levels of the food system); that it uses novel computational modeling methodologies to engage policy makers and guide informed decisions of intervention effectiveness; it emphasizes both the built environment (intervening with food sources) and the social environment (intervening with families and peers). The design of the intervention and the evaluation plan of the BHCK project are documented here. Trial registration NCT02181010 (July 2, 2014).
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Affiliation(s)
- Joel Gittelsohn
- Johns Hopkins Global Obesity Prevention Center, Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe St, Baltimore, MD 21205-2179, USA.
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11
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Kharmats AY, Jones-Smith JC, Cheah YS, Budd N, Flamm L, Cuccia A, Mui Y, Trude A, Gittelsohn J. Relation between the Supplemental Nutritional Assistance Program cycle and dietary quality in low-income African Americans in Baltimore, Maryland. Am J Clin Nutr 2014; 99:1006-14. [PMID: 24622807 PMCID: PMC3985207 DOI: 10.3945/ajcn.113.075994] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND There has been limited research regarding the Supplemental Nutritional Assistance Program (SNAP) and recipients' dietary quality during the days and weeks after benefit disbursement. OBJECTIVE We examined the relation between participants' stages in the SNAP cycle and their macronutrient consumption, Healthy Eating Index (HEI) scores, and fruit and vegetable intake. DESIGN In this cross-sectional study, we analyzed single 24-h dietary recalls collected from 244 African American SNAP participants recruited near 24 corner stores in Baltimore City. A multiple linear regression analysis and bootstrapping were used. RESULTS Among participants who received a SNAP benefit ≤15 d before being surveyed, energy intake adjusted for minimum energy requirements (-4.49%; 95% CI: -8.77%, -0.15%) and HEI dairy scores (-0.12; 95% CI: -0.22, -0.01) were lower for each 1-d increase in the time since SNAP distribution (TSSD). Among participants who received SNAP benefits >15 d before being surveyed, energy intake (1.35%; 95% CI: 0.01%, 2.73%), energy intake adjusted for minimum energy requirements (3.86%; 95% CI: 0.06%, 7.96%), total fat intake (1.96%; 95% CI: 0.29%, 3.8%), saturated fat intake (2.02%; 95% CI: 0.23%, 4.01%), and protein intake (2.09%; 95% CI: 0.70%, 3.62%) were higher per each 1-d increase in the TSSD. CONCLUSIONS These findings suggest that the relation between the TSSD and macronutrient intake might be U-shaped, with higher intake of calories, fat, and protein in individuals in the very early and late stages of their SNAP cycles. Foods high in these nutrients might be cheaper, more accessible, and have a longer shelf-life than healthier options, such as fruit, vegetables, and whole grains, for SNAP participants when their benefits run out. Additional efforts are needed to investigate the effect of the TSSD on dietary intake by using a longitudinal design and to improve the quality of dietary intake in African American SNAP participants.
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Affiliation(s)
- Anna Y Kharmats
- Departments of International Health (AYK, JCJ-S, YSC, NB, AC, YM, and JG) and Health, Behavior, and Society (LF), Johns Hopkins School of Public Health, Baltimore, MD, and the Health Science Department, Federal University of Sao Paulo, São Paulo, Brazil (AT)
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