Prevalence of children with attention difficulties on the SDQ with ADHD diagnoses (DAWBA)
| Variable | ADHD | No ADHD | χ2 |
|---|---|---|---|
| ALSPAC† (n=719) | 97 (13.5) | 622 (86.5) | 515.81** |
| Pelotas† (n=480) | 71 (14.8%) | 409 (85.2) | 322.57** |
*p<0.05; **p<0.001.
†Attention problems=SDQ score ≥7.
ADHD, attention deficit hyperactivity disorder; ALSPAC, Avon Longitudinal Study of Parents and Children; DAWBA, Development and Well-Being Assessment; SDQ, Strengths and Difficulties Questionnaire.