Irregular meal pattern and later sleep midpoint are associated with increased BMI z-score and waist–height ratio during early adolescence

Sohvi Lommi, Elina Engberg, Aku-Ville Lehtimäki, Reetta Lehto, Heli Viljakainen

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

Background: Rapid gains in adiposity may have more adverse health implications in later life compared with having stable adiposity throughout childhood and adolescence. A knowledge gap concerns concomitant health behaviors contributing to adiposity gain among adolescents. Objectives: We investigated the associations of health behaviors relating to dietary habits, sleep, physical activity (PA), and screen time with an increase in body mass index z-score (BMIz) and waist–height ratio (WHtR) during adolescence. Methods: We included 4,785 adolescents (53% of girls) aged 11.1 (SD 0.8) years at baseline and followed them for 3 years. We clustered them into decreased, stable, and increased BMIz and WHtR categories using the K-means clustering method. Using Cox regression, we computed hazard ratios (HR) with 95% CI for the associations of self-reported health behaviors (dietary habits, physical activity, sleep midpoint, and sedentary digital media use) with belonging to an increased BMIz or WHtR group. In a subsample (n = 3,840), we ran a sensitivity analysis considering puberty status as an additional covariate. Results: Later sleep midpoint (having later midpoint of sleep between bedtime and waking time) and irregular meal pattern (not eating lunch and dinner every school day) predicted increased BMIz (HR 1.26 [95% CI 1.13–1.41] and 1.23 [1.08–1.39], respectively) and WHtR (1.23 [1.09–1.39] and 1.18 [1.02–1.36], respectively) over the follow-up period, after adjusting for other health behaviors. Associations remained after considering puberty status as a covariate. Conclusions: Early bedtime with adequate sleep duration and regular meal pattern should be encouraged to prevent adiposity gain during early adolescence.

Originalspråkengelska
Artikelnummer1321024
TidskriftFrontiers in pediatrics
Volym12
Antal sidor12
ISSN2296-2360
DOI
StatusPublicerad - 15 nov. 2024
MoE-publikationstypA1 Tidskriftsartikel-refererad

Bibliografisk information

Publisher Copyright:
2024 Lommi, Engberg, Lehtimäki, Lehto and Viljakainen.

Vetenskapsgrenar

  • 3123 Kvinno- och barnsjukdomar

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