Childhood BMI trajectories predict cardiometabolic risk and perceived stress at age 13 years: the STARS cohort

• Objective: The aim of this study was to examine BMI trajectories from birth throughout childhood, associations with health outcomes at age 13 years, and time frames during which early-life BMI influenced adolescent health. Methods: Participants (1902, 44% male) reported perceived stress and psychosomatic symptoms and were examined for waist circumference (WC), systolic blood pressure (SBP), pulse wave velocity, and white blood cell counts (WBC). BMI trajectory was analyzed using group-based trajectory modeling of retrospective data of weight/height from birth throughout childhood. The authors performed linear regression to assess associations between BMI trajectories and health outcomes at age 13 years, presented as estimated mean differences with 95% CI among trajectories. Results: Three BMI trajectories were identified: normal; moderate; and excessive gain. Adjusting for covariates, adolescents with excessive gain had higher WC (19.2 [95% CI: 18.4–20.0] cm), SBP (3.6 [95% CI: 2.4–4.4] mm Hg), WBC (0.7 [95% CI: 0.4–0.9] × 109/L), and stress (1.1 [95% CI: 0.2–1.9]) than adolescents with normal gain. Higher WC (6.4 [95% CI: 5.8–6.9] cm), SBP (1.8 [95% CI: 1.0–2.5] mm Hg), and stress (0.7 [95% CI: 0.1–1.2]) were found in adolescents with moderate versus normal gain. The association of early-life BMI with SBP started around age 6 years with the excessive gain group, which was earlier than in the normal and moderate gain groups, in which it started at age 12 years. Conclusions: An excessive gain BMI trajectory from birth predicts cardiometabolic risk and stress in 13-year-old individuals.

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MEDICIN OCH HÄLSOVETENSKAP  -- Hälsovetenskap -- Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Health Sciences -- Public Health, Global Health, Social Medicine and Epidemiology (hsv//eng)

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