Table 5 The comparisons of associations between maternal smoking and groups with ADHD and comorbid conditions and with ADHD without co-morbid conditions

ADHD + Mental Retardation (n = 374)

1.32 (0.98–1.79)

1.32 (0.96–1.83)

ADHD + ASD (n = 1134)

1.01 (0.84–1.22)

0.98 (0.80–1.20)

ADHD + Tourette (n = 172)

0.98 (0.64–1.50)

1.06 (0.67–1.68)

ADHD + CD/ODD (n = 2339)

1.87 (1.62–2.16)

1.80 (1.55–2.11)

ADHD + Learning and coordination disorders (n = 2957)

0.94 (0.82–1.07)

0.96 (0.83–1.11)

ADHD without comorbidities (n = 3136)

Reference

Reference