Table 1.
Results of Logistic Regression Analyses of ADHD Case Status on Comorbid Developmental Conditions, Stratified by Sex, in the Swedish Population Sample (Total N = 1,952,542)
Outcome | Sex | % of ADHD Cases With Outcome | Sex-Specific Association |
ADHD by Sex Interaction |
||||||
---|---|---|---|---|---|---|---|---|---|---|
OR | LCI | UCI | p | OR | LCI | UCI | p | |||
ASD | Male | 14.82 | 18.91 | 18.33 | 19.50 | < 2.2E-308a | 1.52 | 1.44 | 1.61 | 2.9E-50a |
Female | 12.04 | 28.68 | 27.38 | 30.04 | < 2.2E-308a | |||||
DCD | Male | 1.86 | 17.90 | 16.38 | 19.57 | < 2.2E-308a | 0.97 | 0.82 | 1.14 | .71 |
Female | 1.08 | 17.61 | 15.25 | 20.33 | < 2.2E-308a | |||||
ID | Male | 5.30 | 9.82 | 9.38 | 10.28 | < 2.2E-308a | 1.11 | 1.03 | 1.20 | .0090 |
Female | 4.89 | 10.89 | 10.23 | 11.60 | < 2.2E-308a | |||||
Epilepsy | Male | 2.57 | 3.27 | 3.09 | 3.47 | < 2.2E-308a | 1.08 | 0.99 | 1.19 | .099 |
Female | 2.85 | 3.55 | 3.29 | 3.82 | 6.6E-238a | |||||
Congenital Malformations | Male | 8.20 | 1.40 | 1.36 | 1.45 | 1.8E-109a | 1.11 | 1.05 | 1.17 | 2.5E-04a |
Female | 6.46 | 1.54 | 1.47 | 1.62 | 8.9E-72a | |||||
Chromosomal Abnormalities | Male | 0.60 | 2.96 | 2.63 | 3.34 | 2.7E-70a | 0.84 | 0.68 | 1.03 | .096 |
Female | 0.52 | 2.48 | 2.07 | 2.96 | 9.5E-24a |
Sex is coded as 0 for male and 1 for female. Birth year is included as a covariate.
ADHD, attention-deficit/hyperactivity disorder; ASD, autism spectrum disorder; DCD, developmental coordination disorder; ID, intellectual disability; LCI, lower confidence interval; OR, odds ratio; UCI, upper confidence interval.
Estimated p value below a Bonferroni-adjusted threshold for multiple testing (p < .0083).