Table 2.
Three-month prevalence estimates for DSM-IV diagnostic groupings according to level of impairment required for diagnosis and gender
| Diagnostic grouping | Boys (N = 637) % (95 % CI) | Girls (N = 517) % (95 % CI) | OR (95 % CI) |
|---|---|---|---|
| Any disorder, impairment not required | 35.3 (29.3–41.7) | 26.5 (20.9–33.0) | 0.66 (0.44–1.00) |
| Any disorder with mild impairment | 25.6 (20.5–31.4) | 19.9 (15.1–25.8) | 0.72 (0.46–1.12) |
| Any disorder with severe impairment | 10.7 (7.7–14.7) | 9.7 (6.5–14.4) | 0.90 (0.51–1.59) |
| Anxiety, impairment not required | 12.4 (8.8–17.3) | 13.0 (9.0–18.3) | 1.05 (0.60–1.83) |
| Anxiety with mild impairment | 8.2 (5.4–12.3) | 7.5 (4.6–11.9) | 0.90 (0.46–1.79) |
| Anxiety with severe impairment | 3.3 (1.7–6.4) | 1.4 (0.6–3.4) | 0.41 (0.13–1.28) |
| Mood, impairment not required | 0.8 (0.2–3.1) | 0.8 (0.2–3.6) | 0.94 (0.12–7.17) |
| Mood with mild impairment | 0.8 (0.2–3.2) | 0.8 (0.2–3.6) | 0.99 (0.12–7.86) |
| Mood with severe impairment | 0.2 (0.1–0.5) | 0.7 (0.1–3.8) | 3.45 (0.50–24.04) |
| ADHD, impairment not required | 10.3 (7.4–14.1) | 7.0 (4.4–10.9) | 0.65 (0.36–1.20) |
| ADHD with mild impairment | 9.2 (6.5–12.9) | 6.8 (4.2–10.7) | 0.72 (0.38–1.34) |
| ADHD with severe impairment | 4.9 (3.1–7.8) | 4.3 (2.3–7.9) | 0.86 (0.38–1.95) |
| Conduct/oppositional, impairment not required | 12.9 (9.4–17.5) | 8.4 (5.5–12.8) | 0.62 (0.35–1.12) |
| Conduct/oppositional with mild impairment | 12.2 (8.8–16.6) | 8.3 (5.4–12.6) | 0.65 (0.36–1.18) |
| Conduct/oppositional with severe impairment | 5.5 (3.5–8.7) | 3.9 (2.1–7.2) | 0.69 (0.31–1.55) |
Weighted prevalence estimates (95 % confidence intervals) based on Diagnostic Interview Schedule for Children (DISC) interviews in 1,154 selected 5- to 8-year-olds to represent rates in the full population-based sample (N = 6,172)
ADHD attention-deficit/hyperactivity disorder