FIGURE 2.

Association of maternal UI/Creat <150 μg/g with child ADHD. Associations depicted as OR (dot) with 95% CI per cohort and overall associations as estimated by random-effects meta-analysis (diamond) in (A) all mother–child pairs, (B) those with ≥1 measure of UI/Creat at ≤18 weeks of gestation, and (C) those with ≥1 measure of UI/Creat at ≤14 weeks of gestation. Analyses adjusted for maternal age, parity, prepregnancy BMI, smoking during pregnancy, ethnicity/country of birth, maternal educational level, gestational age at urine sampling, child sex, child age, and subcohort in INMA. n = children with ADHD, N = children without ADHD. ADHD, attention-deficit hyperactivity disorder; ALSPAC, Avon Longitudinal Study of Parents and Children; INMA, INfancia y Medio Ambiente; UI/Creat, urinary iodine-to-creatinine ratio.