Table 5.
Associations between ADHD scores at age 4 and poor academic performance in reading/writing and mathematics at age 7 (n = 1392)
| Mathematics | Reading/writing | |||
|---|---|---|---|---|
| OR (95% CI)a | OR (95% CI)a | |||
| ADHD-H | ||||
| Unit of increase | 1.04 | (0.97–1.11) | 1.03 | (0.96–1.10) |
| ADHD-I | ||||
| Unit of increase | 1.17 | (1.06–1.29) | 1.20 | (1.09–1.31) |
OR, odds ratio; CI, confidence interval; ADHD-H, ADHD hyperactive–impulsive score; ADHD-I, ADHD inattentive score.
a
Results from logistic regression analyses adjusted for maternal anxiety, depression or sleep disorders before and during pregnancy, maternal age and education, child gender and first-born status.