ArticlePediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology2026
Early childhood asthma and adiposity until adolescence: A prospective birth cohort study using body fat percentage.
Article in Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Early childhood asthma and adiposity until adolescence: A prospective birth cohort study using body fat percentage.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026Article
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5 authors.
Funding
Abstract
backgroundAsthma and obesity frequently coexist in childhood, yet whether asthma predisposes to later adiposity remains underexplored, particularly using measures beyond body mass index (BMI). Considering this, we aimed to examine the association between asthma in early childhood and subsequent adiposity through adolescence, assessed using BMI and body fat percentage, and to evaluate sex-specific effects.
methodsThis prospective study included 4717 participants from the Portuguese population-based Generation XXI birth cohort. Physician-diagnosed asthma at age 4 years was the exposure. Incident obesity and overweight/obesity were assessed at ages 7-, 10-, and 13-years using BMI and body fat percentage estimated by bioelectrical impedance analysis and classified according to age- and sex-specific percentiles. Children who were already overweight or obese at age 4 were excluded from the respective analysis. Cox proportional hazards models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI), adjusting for confounders. Effect modification by sex was tested, and sex-stratified analyses were performed.
resultsAsthma was associated with a higher risk of incident obesity defined by body fat percentage in adjusted analyses (aHR = 1.91, 95% CI: 1.16-3.16), whereas associations with BMI-defined obesity were not statistically significant. Sex-stratified analyses showed that these associations were confined to girls, who had increased risk of obesity (aHR = 1.97, 95% CI: 1.19-3.26) and overweight/obesity (aHR = 1.75, 95% CI: 1.02-3.01) defined by body fat percentage. No significant associations were observed among boys.
conclusionsAsthma in early childhood was associated with increased adiposity in adolescence assessed by body fat percentage, particularly among girls. These findings suggest that children with asthma may develop excess fat accumulation not fully captured by BMI and support the integration of body composition and metabolic risk assessment into pediatric asthma care.
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