5 Jun 2025 • A large study of over 47,000 children has found that Body Mass Index (BMI) trajectories in early childhood may influence the risk of asthma at school age, differently for boys and girls.

Boys who transitioned from low BMI at birth to high BMI by age 7 had significantly increased odds of bronchial asthma (OR: 1.47) and nonallergic asthma (OR: 1.56), while in girls, consistently high BMI was associated with a heightened risk of allergic asthma (OR: 1.78).

These findings highlight the importance of monitoring BMI patterns early in life, suggesting that rapid BMI gains in boys and persistently high BMI in girls may predispose them to different asthma phenotypes.

Source: Wiley Online Library | Read Full Story