Table 2.
Rate of ADHD by assessment step (N = 1887)
| ADHD | Male/Female | Inattentive type of ADHD | Hyperactive type of ADHD | Combined type of ADHD | 2nd–5th school grade (N = 1022) | 6nd–8th school grade (N = 865) | |
|---|---|---|---|---|---|---|---|
| N (%) (95% CI) | N (ratio) | N (%) (95% CI) | N (%) (95% CI) | N (%) (95% CI) | N (%) (95% CI) | N (%) (95% CI) | |
| Teacher ADHD Rating Scale (SDAI) | 84 (4.45) (3.58–5.51) | 73/11 (7:1) | 51 (2.70) (2.04–3.56) | 18 (0.95) (0.58–1.53) | 15 (0.79) (0.46–1.33) | 65 (6.36) (4.98–8.08) | 19 (2.20) (1.37–3.48) |
| Teacher & Parent Rating Scales (SDAI + SDAG) | 27 (1.43) (0.96–2.12) | 23/4 (7:1) | 19 (1.01) (0.65–1.57) | 4 (0.21) (0.07–0.58) | 4 (0.21) (0.07–0.58) | 21 (2.05) (1.31–3.17) | 6 (0.69) (0.28–1.58) |
| Confirmed by Psychiatric Interview (SDAI + SDAG + K-SADS) | 25 (1.32) (0.87–1.97) | 22/3 (7:1) | 12 (0.64) (0.35–1.15) | 3 (0.16) (0.04–0.51) | 10 (0.53) (0.27–1.01) | 20 (1.96) (1.23–3.07) | 5 (0.58) (0.21–1.43) |