Methods for the Year 6 Follow-Up Study of Children in the Infant Feeding Practices Study II

Fein, Sara B.; Li, Ruowei; Chen, Jian; Scanlon, Kelley S.; Grummer‐Strawn, Laurence M.

doi:10.1542/peds.2014-0646c

Cited by 38 publications

(53 citation statements)

References 18 publications

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“…Although our sample includes a large cohort followed longitudinally, it was not nationally representative; mother-child pairs in this study were less likely to be nonwhite or low SES than mother-child pairs in the general US birth cohort from the same time period. 24 Nonetheless, our study design was internally valid, and the associations were adjusted for numerous sociodemographic differences. Moreover, we conducted a thorough stratified analysis before developing regression models and did not observe differential effects in any of the sociodemographic subgroup strata (data not shown).…”

Section: Discussionmentioning

confidence: 99%

Maternal Prepregnancy Body Mass Index and Child Psychosocial Development at 6 Years of Age

et al. 2015

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BACKGROUND: Both obesity and developmental disabilities have increased in recent decades. Limited studies suggest associations between maternal prepregnancy obesity and child neurodevelopment. METHODS:The Infant Feeding Practices Study II, a US nationally distributed longitudinal study of maternal health and infant health and feeding practices, was conducted from 2005 to 2007. In 2012, mothers were recontacted for information on their children's health and development. We examined associations between maternal prepregnancy BMI and child psychosocial development in 1311 mother-child pairs included in this follow-up study. Children's development was assessed by maternal report of child psychosocial difficulties from the Strengths and Difficulties Questionnaire, past developmental diagnoses, and receipt of special needs services.RESULTS: Adjusting for sociodemographic factors, children of obese class II/III mothers (BMI .35.0) had increased odds of emotional symptoms (adjusted odds ratio [aOR] 2.24; 95% confidence interval [CI], 1.27-3.98), peer problems (aOR 2.07; 95% CI, 1.26-3.40), total psychosocial difficulties (aOR 2.17; 95% CI, 1.24-3.77), attention-deficit/hyperactivity disorder diagnosis (aOR 4.55; 95% CI, 1.80-11.46), autism or developmental delay diagnosis (aOR 3.13; 95% CI, 1.10-8.94), receipt of speech language therapy (aOR 1.93; 95% CI, 1.18-3.15), receipt of psychological services (aOR 2.27; 95% CI, 1.09-4.73), and receipt of any special needs service (aOR 1.99; 95% CI, 1.33-2.97) compared with children of normal weight mothers ). Adjustment for potential causal pathway factors including pregnancy weight gain, gestational diabetes, breastfeeding duration, postpartum depression, and child's birth weight did not substantially affect most estimates.CONCLUSIONS: Children whose mothers were severely obese before pregnancy had increased risk for adverse developmental outcomes.WHAT'S KNOWN ON THIS SUBJECT: Both obesity and developmental disabilities have increased in recent decades; however, the full long-term effects of prepregnancy obesity on a child' s psychosocial development remain unknown. Limited studies suggest associations between maternal prepregnancy obesity and child psychosocial development. WHAT THIS STUDY ADDS:This study in 6-year-old children provides evidence that severe prepregnancy obesity is associated with adverse child psychosocial outcomes, including attentiondeficit/hyperactivity disorder. These findings were not explained by many pregnancy and postpartum factors related to maternal obesity or child development.

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Section: Discussionmentioning

confidence: 99%

Maternal Prepregnancy Body Mass Index and Child Psychosocial Development at 6 Years of Age

et al. 2015

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“…About half (48%) of the children who participated in the original survey were lost to follow-up at 6 years of age. 22 For this analysis, we excluded 16 children because they were .13 months old when they participated in the last survey of IFPS II, 6 children who had missing data on the outcome variable (SSB intake at 6 years of age), and 158 children who did not have any original SSB data (ie, had no SSB intake information) in 1 to 6 months' or 7 to 12 months' surveys, resulting in a final analytic sample of 1333 children. The IFPS II and Y6FU studies were approved by the Food and Drug Administration Institutional Review Board.…”

Section: Study Population and Survey Administrationmentioning

confidence: 99%

The Association of Sugar-Sweetened Beverage Intake During Infancy With Sugar-Sweetened Beverage Intake at 6 Years of Age

et al. 2014

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Sugar‐sweetened beverage (SSB) intake is associated with adverse health consequences including obesity and dental caries. Due to limited information on associations between SSB intake during infancy and intake of SSBs in childhood, we examined this question using longitudinal data for 1333 U.S. children from the 2005‐2007 Infant Feeding Practices Study II and the 2012 Follow‐up Study at 6 years of age. Multivariable logistic regression was used to calculate adjusted odds ratios (aOR) for associations of SSB intake during infancy with consuming SSBs 蠅1 time/day at 6 years old after controlling for baseline characteristics. Based on maternal report, one‐fifth of children consumed SSBs at least 1 time/day at 6 years. The adjusted odds of consuming SSBs at 6 years 蠅1 time/day was significantly (p<0.05) higher among infants with any SSB intake during infancy vs. none (aOR=2.22), SSB introduction at <6 months (aOR=2.01) or 蠅6 months (aOR=2.33) vs. never, and mean SSB intake between 10 and 12 months of age (aOR=2.72 for 1‐<2 times/week, and 2.57 for 蠅3 times/week, vs. none). SSB intake during infancy significantly increased the likelihood of consuming SSBs 蠅1 time/day at 6 years of age. Our findings suggest that infancy may be an important time for mothers to establish healthy beverage practices for their children and these findings can be used to inform intervention efforts to reduce SSB intake among children.

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“…18,19 The IFPS II followed mothers and infants from late pregnancy through 1 year postpartum to understand infant feeding patterns, infants' health, factors that may affect infant feeding, and mothers' health and diet. Data were collected from May 2005 through June 2007 by using a nationally distributed consumer opinion panel.…”

Section: Study Population and Data Collectionmentioning

confidence: 99%

“…All questionnaires and procedures were approved by the US Food and Drug Administration' s institutional review board and the US Office of Management and Budget. Detailed information on the Y6FU is available in the methods article by Fein et al 19 in this supplement.…”

Section: Study Population and Data Collectionmentioning

confidence: 99%

Breastfeeding and Later Psychosocial Development of Children at 6 Years of Age

Lind

Li²,

Perrine

et al. 2014

Pediatrics

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To examine the association of breastfeeding duration with psychosocial development at 6 years of age. METHODS:We analyzed data from the 2005-2007 Infant Feeding Practices Study II and its 2012 Year 6 Follow-Up (N = 1442). Our breastfeeding duration variable combined overall and exclusive breastfeeding reported during infancy (never breastfed, breastfed ,6 months, breastfed $6 months + exclusive breastfeeding ,3 months, and breastfed $6 months + exclusive breastfeeding $3 months). Maternal responses to the Strengths and Difficulties Questionnaire were used to create our child psychosocial outcome domains (emotional symptoms, conduct problems, hyperactivity, peer problems, prosocial behavior, and total difficulties). Separate multivariable logistic regression models controlling for maternal sociodemographic characteristics, maternal mental health, and child characteristics were used to assess the likelihood of having difficulties on the 6 domains based on breastfeeding duration. RESULTS:Compared with children who were never breastfed, those who were breastfed for $6 months and exclusively breastfed for $3 months had decreased odds of difficulties with emotional symptoms (odds ratio [OR]: 0.52; 95% confidence interval [CI]: 0.27-0.99), conduct problems (OR: 0.24; 95% CI: 0.10-0.54), and total difficulties (OR: 0.39; 95% CI: 0.18-0.85) before adjustment. These associations were no longer significant after adjustment.CONCLUSIONS: Although in our unadjusted analyses we observed significant associations between breastfeeding duration and later psychosocial development, including decreased odds of emotional, conduct, and total difficulties at 6 years of age, these findings were no longer detectable after adjusting for the many potential confounding factors that play a role in psychosocial development. Pediatrics 2014;134: S36-S41

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Methods for the Year 6 Follow-Up Study of Children in the Infant Feeding Practices Study II

Cited by 38 publications

References 18 publications

Maternal Prepregnancy Body Mass Index and Child Psychosocial Development at 6 Years of Age

Maternal Prepregnancy Body Mass Index and Child Psychosocial Development at 6 Years of Age

The Association of Sugar-Sweetened Beverage Intake During Infancy With Sugar-Sweetened Beverage Intake at 6 Years of Age

Breastfeeding and Later Psychosocial Development of Children at 6 Years of Age

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