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Objective: Few studies have examined sociodemographic disparities in ambulatory pediatric telemedicine utilization during the coronavirus disease 2019 pandemic. We aimed to (1) assess disparities in telemedicine visit completion during the first 6 weeks of the pandemic in 2020 and (2) determine if these disparities were significantly different from those present in 2019, when all visits occurred in person. Methods: We compared sociodemographic characteristics of patients with successful versus unsuccessful telemedicine visits from March 10, 2020 to April 18, 2020, using generalized linear mixed models. We performed the same analysis for in-person visits from the same period in 2019. We tested for differences across years using interaction terms in a combined 2019-2020 model. Results: Of 3,639 telemedicine visits scheduled, 3,033 (83.3%) were successful. In 2020, Black/African American race was significantly associated with lower odds of telemedicine visit success (odds ratio 0.65 [95% confidence interval 0.49-0.87]) compared with White race, after adjusting for age, gender, ethnicity, insurance type, visit timing, visit specialty, social vulnerability index, and internet access. In 2019, racial identity other than White was significantly associated with lower odds of in-person visit success than White, as was public insurance compared with private. In the full 2019-2020 model, in-person visits (2019) had lower odds of success than telemedicine visits (2020), and neither race, insurance type, nor any other sociodemographic characteristic had significant interactions with year. Conclusions: Racial disparities were evident in telemedicine utilization early in the pandemic; however, these disparities were not significantly different from those seen in 2019, when all visits were in person. Furthermore, telemedicine may improve access to care overall, despite having no significant impact on inequity. Efforts to eliminate racial disparities in ambulatory pediatric health care utilization are necessary across visit modalities.
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COVID-19 , Disparidades em Assistência à Saúde , Fatores Sociodemográficos , Telemedicina , Criança , Humanos , Assistência Ambulatorial , Negro ou Afro-Americano , COVID-19/epidemiologia , Pandemias , Aceitação pelo Paciente de Cuidados de Saúde , Pediatria , BrancosRESUMO
Objective: We aimed to (1) describe telemedicine utilization and usability during the first 6 weeks of the pandemic and (2) determine if usability varied by individual- or visit-level characteristics. Methods: We conducted a retrospective cohort study of ambulatory pediatric telemedicine visits occurring between March 10, 2020, and April 18, 2020, across a large academic health system. We performed manual chart review to assess individual- and visit-level characteristics and invited caregivers to respond to an adapted Telehealth Usability Questionnaire (TUQ). We used multiple logistic regression to determine predictors of high usability. Results: There were 3,197 ambulatory pediatric telemedicine visits, representing 2,967 unique patients. Patients were racially/ethnically diverse (42.5% non-Hispanic White) and primarily English-speaking (89.2%). Surveys were completed by 441 (17%) of those invited. Every item of the TUQ had agreement or strong agreement from the majority of respondents. Compared with non-Hispanic White, non-Hispanic Asian identity was associated with lower usability in three domains and overall, and non-Hispanic Black identity was associated with higher satisfaction and future use. As compared with caregivers of infants younger than 1 year, caregivers of older patients reported lower usability in the three domains. Conclusions: Telemedicine was successfully implemented across 18 ambulatory pediatric specialties in the largest health system in New York State at the onset of COVID-19, and caregivers found it usable and acceptable. Usability scores did not vary by visit-level characteristics but did vary by race/ethnicity and age. Further research is necessary to identify modifiable drivers of the patient experience, particularly in non-Hispanic Asian communities and older adolescents.
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COVID-19 , Medidas de Resultados Relatados pelo Paciente , SARS-CoV-2 , Telemedicina , Humanos , COVID-19/epidemiologia , Telemedicina/estatística & dados numéricos , Feminino , Masculino , Criança , New York , Estudos Retrospectivos , Pré-Escolar , Adolescente , Lactente , Pandemias , Pediatria , Assistência Ambulatorial/estatística & dados numéricos , Recém-NascidoRESUMO
Background: Adverse social determinants of health (SDoHs), specifically psychosocial stressors and material hardships, are associated with early childhood obesity. Less is known about whether adverse SDoHs modify the efficacy of early childhood obesity prevention programs. Methods: We conducted a secondary analysis of publicly insured birthing parent-child dyads with Latino backgrounds participating in a randomized controlled trial of the Starting Early Program (StEP), a child obesity prevention program beginning in pregnancy. We measured baseline adverse SDoHs categorized as psychosocial stressors (low social support, single marital status, and maternal depressive symptoms) and material hardships (food insecurity, housing disrepair, and financial difficulties) individually and cumulatively in the third trimester. Logistic regression models tested effects of adverse SDoHs on StEP attendance. We then tested whether adverse SDoHs moderated intervention impacts on weight at age 2 years. Results: We observed heterogeneous effects of adverse SDoHs on outcomes in 358 parent-child dyads. While housing disrepair decreased odds of higher attendance [adjusted odds ratio (aOR) 0.52, 95% confidence interval (CI): 0.29-0.94], high levels of psychosocial stressors doubled odds of higher attendance (aOR 2.36, 95% CI: 1.04-5.34). Similarly, while certain adverse SDoHs diminished StEP impact on weight (e.g., housing disrepair), others (e.g., high psychosocial stress) enhanced StEP impact on weight. Conclusions: Effects of adverse SDoHs on intervention outcomes depend on the specific adverse SDoH. Highest engagement and benefit occurred in those with high psychosocial stress at baseline, suggesting that StEP components may mitigate aspects of psychosocial stressors. Findings also support integration of adverse SDoH assessment into strategies to enhance obesity prevention impacts on families with material hardships. Trial Registration: This study is registered on clinicaltrials.gov: Starting Early Obesity Prevention Program (NCT01541761); https://clinicaltrials.gov/ct2/show/NCT01541761.
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Obesidade Infantil , Atenção Primária à Saúde , Determinantes Sociais da Saúde , Humanos , Obesidade Infantil/prevenção & controle , Obesidade Infantil/epidemiologia , Obesidade Infantil/psicologia , Feminino , Gravidez , Masculino , Pré-Escolar , Cuidado Pré-Natal/métodos , Adulto , Hispânico ou Latino/estatística & dados numéricos , Estresse Psicológico/prevenção & controle , Apoio SocialRESUMO
OBJECTIVE: To explore how Sesame Workshop resources are perceived by Latino families with economic hardship and to highlight approaches for early heart healthy routine promotion. METHODS: We performed a purposive sampling of Latina mothers (n = 40) with young children experiencing economic hardship. Using an interview guide informed by the Consolidated Framework for Implementation Research, we recorded Spanish and English semistructured interviews, which were translated and transcribed verbatim. Partnering with Sesame Workshop, we iteratively incorporated Sesame Resources into interviews to query for acceptability. Using reflexive thematic analysis, we coded transcripts through textual analysis until saturation, prioritizing in vivo coding to capture participant voices. RESULTS: We constructed 3 themes. Parents connected with resources that 1) Reflect lived and multicultural experiences containing recognizable family scenes that can serve as tools to transfer a parent's own early routines or cultural rituals to their child. They appreciated resources that 2) Engage caregivers and children together, featuring elements for both children and adult caregivers with activities to highlight important caregivers and encourage shared play. Participants also reflected on how 3) Routines amplify family strengths and foster resilient reactions with feelings of decreased stress when daily practices become routines, promoting resilient reactions and supporting long-term goals when facing setbacks. CONCLUSIONS: An interdisciplinary partnership leveraged strengths of pediatric practitioners and Sesame Workshop to align future initiatives with the values and priorities of mothers of young children at risk for early obesity. Resultant themes inform strategies to promote heart healthy routines and relational health in young children with economic hardship.
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OBJECTIVE: To examine whether prenatal or concurrent household food insecurity influences associations between maternal and toddler fruit and vegetable (FV) intake. DESIGN: Application of a life-course framework to an analysis of a longitudinal dataset. SETTING: Early childhood obesity prevention program at a New York City public hospital. PARTICIPANTS: One-hundred and fifty-six maternal-toddler dyads self-identifying as Hispanic or Latino. VARIABLES MEASURED: Maternal and toddler FV intake was measured using Centers for Disease Control and Prevention dietary measures when toddlers were aged 19 months. Household food insecurity (measured prenatally and concurrently at 19 months) was measured using the US Department of Agriculture Food Security Module. ANALYSIS: Regression analyses assessed associations between adequate maternal FV intake and toddler FV intake. Interaction terms tested whether prenatal or concurrent household food insecurity moderated this association. RESULTS: Adequate maternal FV intake was associated with increased toddler FV intake (B = 6.2 times/wk, 95% confidence interval, 2.0-10.5, P = 0.004). Prenatal household food insecurity was associated with decreased toddler FV intake (B = -6.3 times/wk, 95% confidence interval, -11.67 to -0.9, P = 0.02). There was a significant interaction between the level of maternal-toddler FV association (concordance or similarity in FV intake between mothers and toddlers) and the presence of food insecurity such that maternal-toddler FV association was greater when prenatal household food insecurity was not present (B = -11.6, P = 0.04). CONCLUSIONS AND IMPLICATIONS: Strategies to increase FV intake across the life course could examine how the timing of household food insecurity may affect intergenerational maternal-child transmission of dietary practices.
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Obesidade Infantil , Verduras , Criança , Feminino , Gravidez , Humanos , Pré-Escolar , Frutas , Abastecimento de Alimentos , Mães , Insegurança AlimentarRESUMO
Optimal cardiovascular health is an essential component of human health and well-being across the life course. Heart healthy practices around diet, physical activity, and sleep early in childhood have the potential to greatly improve lifespan and quality (Mehta et al., 2020). Early childhood routines, defined as functional practices that are predictable and repeatable, predict positive growth and development across the lifecourse (Fiese et al., 2002; Ferretti and Bub, 2017; Spagnola and Fiese, 2007). The American Heart Association has identified key heart healthy routines, such as daily regular activities including diet, physical activity, and sleep that promote cardiovascular health (Lloyd-Jones et al., 2022). Integrating the strength-based relational aspects of routines with the acquisition of cardiovascular health development capabilities allows children to establish their own optimal cardiovascular health trajectory early on. A systematic life course approach to supporting heart healthy routines in early childhood would inform clinical, research, and policy strategies to promote long-term cardiovascular health, and contribute to reducing inequalities in cardiovascular outcomes.
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Dieta , Acontecimentos que Mudam a Vida , Criança , Estados Unidos , Humanos , Pré-Escolar , Nível de SaúdeRESUMO
Background: Prepregnancy overweight/obesity (OW/OB) is a strong risk factor for child obesity. Few studies have identified modifiable factors that mitigate this risk. Objective: The objective of this study was to determine if prenatal social support buffers the effect of prepregnancy OW/OB on child birth weight z-score (BWz) and weight-for-age z-score (WFAz) trajectory. Methods: We performed a longitudinal secondary analysis of 524 mother-infant pairs enrolled in a randomized controlled trial of the Starting Early Program, a child obesity prevention program for Hispanic families with low income. Social support was assessed in the third trimester of pregnancy; maternal prepregnancy OW/OB and child WFAz from birth to age 3 years were obtained from medical records. Linear regression and multilevel modeling tested the effects of maternal prepregnancy OW/OB on child weight outcomes, and whether prenatal social support moderated these effects. Results: Prepregnancy OW/OB was associated with significantly higher child BWz (B = 0.23, p = 0.01) and WFAz trajectories (B = 0.19, 0.01). The interaction between social support and prepregnancy OW/OB was negatively related to child BWz (B = -0.26, p = 0.02) and WFAz trajectory (B = -0.40, p = 0.047). Conclusions: Prenatal social support may be protective against the intergenerational transmission of obesity risk. Interventions for the prevention of child obesity should consider incorporating social support into their design. Clinical Trial Registration Number: NCT01541761.
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Sobrepeso , Obesidade Infantil , Complicações na Gravidez , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Gravidez , Peso ao Nascer , Índice de Massa Corporal , Hispânico ou Latino , Obesidade Infantil/epidemiologia , Obesidade Infantil/prevenção & controle , Apoio Social , Cuidado Pré-NatalRESUMO
OBJECTIVE: Children in low-income Hispanic families are at high risk of obesity and are more likely to live with grandparents than their non-Hispanic white counterparts. We aimed to determine if grandparent coresidence (prenatal through age 2 years) was associated with: 1) obesogenic feeding practices; and 2) child weight outcomes from birth to three years. METHODS: We analyzed data from 267 low-income, Hispanic mother-infant pairs in the control group of an obesity prevention trial in New York City. Linear and logistic regression tested differences in obesogenic feeding practices and weight outcomes at 2 and 3 years, dependent upon grandparent coresidence. Multilevel modeling tested associations between grandparent coresidence and WFAz over time. RESULTS: Persistent grandparent coresidence (vs none) was associated with putting cereal in the bottle (adjusted odds ratio [aOR] 3.46; 95% confidence interval [CI] 1.43, 8.40). Persistent grandparent coresidence (vs none) was associated with higher mean WFAz (2 years: B 0.83; 95% CI 0.41, 1.25; 3 years: B 0.79; 95% CI 0.32, 1.25) and higher odds of child overweight/obesity risk (2 years: aOR 4.38; 95% CI 1.64, 11.69; 3 years: aOR 3.15; 95% CI 1.19, 8.36). In multilevel models, more occasions of grandparent coresidence were associated with higher WFAz. CONCLUSIONS: Grandparent coresidence may be associated with higher risk of child overweight/obesity in low-income, Hispanic families. Further research is needed to elucidate mechanisms of these associations and to inform obesity prevention strategies in the context of multigenerational families.
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Avós , Obesidade Infantil , Criança , Pré-Escolar , Feminino , Hispânico ou Latino , Humanos , Lactente , Cidade de Nova Iorque/epidemiologia , Sobrepeso/epidemiologia , Obesidade Infantil/epidemiologia , Gravidez , Fatores de RiscoRESUMO
BACKGROUND: Appetite traits and feeding practices are important determinants of child weight and obesity. OBJECTIVES: This study examined whether: (1) infant appetite traits were associated with feeding practices and (2) feeding practices mediated the link between appetite traits and weight-for-age z-scores at age 3 years. METHODS: We conducted a secondary data analysis from the 'Starting Early Program' of low-income, Hispanic mother-child pairs. Appetite traits were assessed using the Baby Eating Behaviour Questionnaire. Infant feeding practices were collected using 24-h dietary recalls and surveys: (1) breastfeeding exclusivity, intensity and duration; (2) early introduction to complementary foods/liquids and (3) any 100% fruit juice consumption at age 10 months. Regression and mediation analyses were used to explore associations between appetite, feeding and weight. RESULTS: Higher infant Slowness in Eating scores were associated with greater breastfeeding exclusivity, intensity and duration, compared to lower Slowness in Eating. Infants with higher Slowness in Eating and Satiety Responsiveness had lower odds of early introduction to complementary foods/liquids. Infants with higher Enjoyment of Food had greater odds of 100% juice consumption. Breastfeeding duration mediated the relationship between higher infant Slowness in Eating and lower weight-for-age z-scores. CONCLUSIONS: Appetite traits represent potential targets for early life infant feeding interventions.
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Apetite , Obesidade Infantil , Aleitamento Materno , Pré-Escolar , Comportamento Alimentar , Feminino , Hispânico ou Latino , Humanos , Lactente , Obesidade Infantil/epidemiologia , Obesidade Infantil/prevenção & controle , Inquéritos e QuestionáriosRESUMO
OBJECTIVES: Maternal stress has been associated with early child obesity through pathways related to decreased exclusive breastfeeding and increased nonresponsive maternal-infant feeding styles. We sought to gain an in-depth understanding of how maternal stress, sadness, and isolation are perceived to affect feeding, in order to inform modifiable targets of intervention. METHODS: We conducted semi-structured qualitative interviews with Hispanic mothers living in poverty with young infants between 3 and 7 months old (n = 32) from the intervention group of a randomized controlled trial of an early child obesity prevention intervention (Starting Early Program). Bilingual English-Spanish interviewers conducted the interviews, which were audio recorded, transcribed, and translated. Building on an existing theoretical framework developed by the National Scientific Council on the Developing Child, we used an iterative process of textual analysis to code the transcripts, until thematic saturation was reached. RESULTS: Three key themes were described: 1) maternal stress responses were varied and included positive (brief and mild), tolerable (sustained but limited long-term impacts), or toxic stress (sustained and severe); 2) buffers included support from family, infants, health care providers, social service programs, and community organizations; 3) perceived effects on infant feeding included decreased breastfeeding due to concerns about stress passing directly through breast milk and indirectly through physical closeness, and increased nonresponsive feeding styles. CONCLUSIONS: Maternal stress, particularly toxic stress, was perceived to negatively affect infant feeding. Mothers reported disrupting healthy feeding to avoid infant exposure to stress. Interventions to enhance buffering may help to mitigate toxic stress and promote healthy feeding interactions.
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Aleitamento Materno , Obesidade Infantil , Criança , Feminino , Hispânico ou Latino , Humanos , Lactente , Mães , Obesidade Infantil/prevenção & controle , PobrezaRESUMO
BACKGROUND: Child appetite traits (ATs) are associated with later child weight and obesity risk. Less research has focused on ATs in low-income Hispanic children or included longitudinal associations with infant weight. OBJECTIVE: To determine stability of ATs during infancy and childhood and their relationship with subsequent weight and obesity risk at age 3 years among low-income Hispanic children. DESIGN: A secondary longitudinal analysis of data from the Starting Early Program randomized controlled obesity prevention trial. PARTICIPANTS/SETTING: Three hundred twenty-two low-income, Hispanic mother-child pairs enrolled between 2012 and 2014 in a public hospital in New York City. MAIN OUTCOME MEASURES: ATs, including Slowness in Eating, Satiety Responsiveness, Food Responsiveness, and Enjoyment of Food were assessed using the Baby and Child Eating Behavior Questionnaires at ages 3 months, 2 years, and 3 years. Main outcome measures were child standardized weight-for-age z score (WFAz) and obesity risk (WFA≥95th percentile) at age 3 years. STATISTICAL ANALYSES PERFORMED: AT stability was assessed using correlations and multilevel modeling. Linear and logistic regression analyses examined associations between ATs and child WFAz and obesity risk at age 3 years. RESULTS: There was limited stability for all ATs measured over time. During infancy, Slowness in Eating was associated with lower 3-year WFAz (B = -0.18, 95% CI -0.33 to -0.04; P = 0.01). At age 2 years, Slowness in Eating and Satiety Responsiveness were associated with lower WFAz (B = -0.29, 95% CI -0.47 to -0.12; P < 0.01; B = -0.36, 95% CI -0.55 to -0.17; P < 0.01) and obesity risk (adjusted odds ratio 0.49, 95% CI 0.28 to 0.85; adjusted odds ratio 0.61, 95% CI 0.38 to 0.99) at 3 years. Increased Slowness in Eating and Satiety Responsiveness over time were associated with lower 3-year WFAz (B = -0.74, 95% CI -1.18 to -0.2 [Slowness in Eating]; B = -1.19, 95% CI -1.87 to -0.52 [Satiety Responsiveness], both P values = 0.001). Higher Enjoyment of Food over time was associated with higher 3-year WFAz (B = 0.62, 95% CI 0.24 to 1.01; P = 0.002). CONCLUSIONS: Infants with lower Slowness in Eating and Satiety Responsiveness may have higher levels of obesity risk and need more tailored approaches to nutrition counseling and obesity prevention.
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Apetite/etnologia , Comportamento Infantil/etnologia , Comportamento Alimentar/etnologia , Hispânico ou Latino/estatística & dados numéricos , Obesidade Infantil/etnologia , Pobreza/etnologia , Comportamento Infantil/psicologia , Pré-Escolar , Ingestão de Alimentos/etnologia , Ingestão de Alimentos/psicologia , Comportamento Alimentar/psicologia , Feminino , Hispânico ou Latino/psicologia , Humanos , Lactente , Estudos Longitudinais , Masculino , Análise Multinível , Cidade de Nova Iorque , Razão de Chances , Obesidade Infantil/prevenção & controle , Obesidade Infantil/psicologia , Pobreza/psicologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Análise de Regressão , Medição de Risco , Fatores de Risco , Resposta de SaciedadeRESUMO
Background: Disparities in obesity-promoting feeding patterns begin in pregnancy and infancy, underscoring the need for early primary prevention in high-risk groups. We sought to determine the impact of a primary care-based child obesity prevention intervention beginning during pregnancy on maternal infant feeding practices, knowledge, and styles at 10 months in low-income Hispanic families. Methods: The Starting Early Program (StEP) randomized controlled trial enrolled pregnant women at a third trimester visit. Women (n = 533) were randomized to standard care or an intervention with prenatal/postpartum individual nutrition counseling and nutrition and parenting support groups coordinated with pediatric visits. Feeding practices (breastfeeding, family meals, juice, and cereal in the bottle) were assessed using questions from the Infant Feeding Practices Study II. Feeding styles were assessed using the Infant Feeding Style Questionnaire. We analyzed impacts on feeding practices, knowledge, and styles using regression analyses adjusting for covariates. Results: Four hundred twelve mothers completed 10-month assessments. Intervention mothers were more likely to give breast milk as the only milk source [adjusted odds ratio (AOR) 1.65, 95% confidence interval (CI) 1.06-2.58] and have daily family meals (AOR 1.91, 95% CI 1.19-3.05), and less likely to give juice (AOR 0.60, 95% CI 0.39-0.92) or cereal in the bottle (AOR 0.54, 95% CI 0.30-0.97) compared to controls. Intervention mothers were more likely to exhibit lower pressuring, indulgent and laissez-faire feeding styles, and to have higher knowledge. Attending a greater number of group sessions increased intervention impacts. Conclusions: StEP led to reduced obesity-promoting feeding practices and styles, and increased knowledge and provides great potential for population-scalability.
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Comportamento Alimentar , Fenômenos Fisiológicos da Nutrição do Lactente , Obesidade Infantil/prevenção & controle , Adulto , Aleitamento Materno , Feminino , Humanos , Lactente , Alimentos Infantis , Gravidez , Terceiro Trimestre da Gravidez , Inquéritos e QuestionáriosRESUMO
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 (Bâ¯=â¯-0.59 hours, 95% confidence interval [CI]: -1.04, -0.14; and Bâ¯=â¯-0.54 hours, 95% CI: -1.00, -0.08). Housing disrepair was associated with decreased 24-hour sleep (Bâ¯=â¯-0.64 hours, 95% CI: -1.29, -0.01). In toddlers, each additional suboptimal sleep practice was associated with a decrease in night sleep (Bâ¯=â¯-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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Obesidade Infantil , Pobreza , Pré-Escolar , Hispânico ou Latino , Habitação , Humanos , Lactente , SonoRESUMO
OBJECTIVES: To determine impact of a primary care-based child obesity prevention intervention beginning during pregnancy on early childhood weight outcomes in low-income Hispanic families. METHODS: A randomized controlled trial comparing mother-infant pairs receiving either standard care or the Starting Early Program providing prenatal and postpartum nutrition counseling and nutrition parenting support groups targeting key obesity-related feeding practices in low-income groups. Primary outcomes were reduction in weight-for-age z-scores (WFAzs) from clinical anthropometric measures, obesity prevalence (weight for age ≥95th percentile), and excess weight gain (WFAz trajectory) from birth to age 3 years. Secondary outcomes included dose effects. RESULTS: Pregnant women (n = 566) were enrolled in the third trimester; 533 randomized to intervention (n = 266) or control (n = 267). Also, 358 children had their weight measured at age 2 years; 285 children had weight measured at age 3 years. Intervention infants had lower mean WFAz at 18 months (0.49 vs 0.73, P = .04) and 2 years (0.56 vs 0.81, P = .03) but not at 3 years (0.63 vs 0.59, P = .76). No group differences in obesity prevalence were found. When generalized estimating equations were used, significant average treatment effects were detected between 10-26 months (B = -0.19, P = .047), although not through age 3 years. In within group dose analyses at 3 years, obesity rates (26.4%, 22.5%, 8.0%, P = .02) decreased as attendance increased with low, medium, and high attendance. CONCLUSIONS: Mean WFAz and growth trajectories were lower for the intervention group through age 2 years, but there were no group differences at age 3. Further study is needed to enhance sustainability of effects beyond age 2.