Cases exposed to smoking during pregnancy n (%) | Controls exposed to smoking during pregnancy n (%) | OR (95 % CI) Unadjusted | OR (95 % CI) Adjusteda | |
---|---|---|---|---|
ADHD + Mental Retardation (N = 374) | 106 (28.3 %) | 173 (12.6 %) | 2.79 (2.10–3.72) | 1.93 (1.38–2.69) |
ADHD + ASD (n = 1134) | 299 (26.4 %) | 593 (14.3 %) | 2.14 (1.82–2.51) | 1.59 (1.33–1.91) |
ADHD + Tourette (n = 172) | 45 (26.2 %) | 89 (14.3 %) | 2.06 (1.36–3.13) | 1.74 (1.06–2.86) |
ADHD + CD/ODD (n = 2339) | 950 (40.6 %) | 1308 (15.4 %) | 3.96 (3.55–4.41) | 2.54 (2.24–2.88)b |
ADHD + Learning and coordination disorders (n = 2957) | 799 (27.0 %) | 1726 (16.0 %) | 1.98 (1.80–2.19) | 1.51 (1.35–1.68) |
ADHD without comorbidities (n = 3136) | 865 (27.6 %) | 1764 (15.4 %) | 2.11 (1.92–2.32) | 1.59 (1.43–1.77) |