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- W3098146502 abstract "Abstract Background Habits surrounding health behaviors (i.e., sleep, physical activity, diet) are developed in toddlerhood. Lack of consistent health habits may increase obesity risk among toddlers in low-income families. Purpose To compare the role of sleep onset consistency, physical activity and diet quality as mediators between household poverty and toddler weight. Methods Two hundred and seven toddlers (mean age = 20.2 months, 46% female, 68.1% Black) participating in an obesity prevention trial were assessed at three time points over 12 months. Using Actical accelerometers, we assessed sleep and physical activity at each time point for up to 1 week. We defined sleep onset consistency as the standard deviation of sleep onset across all days. We calculated the Healthy Eating Index-2015 from a 24-hr dietary recall. We used WHO standards to calculate BMI-for-age z-scores from toddlers’ weight/length, and calculated poverty ratio from parent-reported income and family size. Multilevel mediation models tested toddler sleep onset consistency, physical activity, and diet quality as mediators between household poverty and toddler BMI z-score. Results Toddlers from households with higher poverty ratios had more inconsistent sleep onset times. Toddlers with more inconsistent sleep onset times had higher BMI z-scores across all timepoints, even when accounting for physical activity and diet quality. Sleep onset consistency indirectly explained the association between household poverty and BMI z-score. Conclusions Inconsistent sleep schedules could help explain the association between poverty and BMI. Future research should examine strategies to support low-income families to develop and maintain routines as a mechanism to prevent obesity and reduce disparities. Trial registration number NCT02615158." @default.
- W3098146502 created "2020-11-23" @default.
- W3098146502 creator A5011625511 @default.
- W3098146502 creator A5022374702 @default.
- W3098146502 creator A5042459564 @default.
- W3098146502 creator A5059357316 @default.
- W3098146502 date "2020-11-16" @default.
- W3098146502 modified "2023-10-02" @default.
- W3098146502 title "Longitudinal Associations Among Diet Quality, Physical Activity and Sleep Onset Consistency With Body Mass Index <i>z</i>-Score Among Toddlers in Low-income Families" @default.
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- W3098146502 doi "https://doi.org/10.1093/abm/kaaa100" @default.
- W3098146502 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8240137" @default.
- W3098146502 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33196078" @default.
- W3098146502 hasPublicationYear "2020" @default.
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