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Association between maternal body mass index (BMI) in early pregnancy (continuously measured) and prevalent asthma in the offspring at 1–16 years among mothers with BMI ≥ 18.5 kg/m2 (n = 3177). Adjusted odds ratios (adj OR) and 95% confidence intervals (CI) represent 5 kg/m2 increase in BMI. Triangles are additionally adjusted for overweight in the offspring at each age.
