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(A–C) Multivariate analysis of adiposity indicators and asthma, stratified by fractional exhaled nitric oxide level. (A) Body mass index z score. (B) Percent body fat z score. (C) Waist circumference z score. All models adjusted for age, sex, race and ethnicity, family history of asthma, annual household income, use of oral or inhaled steroids, and environmental tobacco smoke exposure. *P < 0.05. CI = confidence interval.
