Table 4.
Prevalence of the hyperactivity disorder subtype
| Prevalence of hyperactivity disorder (hyperactivity/impulsivity symptoms) | Chi square (P value) | |||
|---|---|---|---|---|
| Negative ADHD status | Positive ADHD status | Total | ||
| N = 366 (%) | N = 34 (%) | N = 400 (%) | ||
| Sex | ||||
| Male | 207 (90.4) | 22 (9.6) | 229 (57.3) | 0.84 (0.358) |
| Female | 159 (93.0) | 12 (7.0) | 171 (42.7) | |
| Age | ||||
| 6–7 | 78 (90.7) | 8 (9.3) | 86 (21.5) | 5.20 (0.074) |
| 8–10 | 145 (95.4) | 7 (4.6) | 152 (38.0) | |
| 11–12 | 143 (88.3) | 19 (11.7) | 162 (40.5) | |
| Class | ||||
| Class one | 90 (97.8) | 2 (2.2) | 92 (23.0) | 17.32 (0.004) |
| Class two | 62 (82.7) | 13 (17.3) | 75 (18.8) | |
| Class three | 62 (96.9) | 2 (3.1) | 64 (16.0) | |
| Class four | 56 (91.8) | 5 (8.2) | 61 (15.2) | |
| Class five | 57 (91.9) | 5 (8.1) | 62 (15.5) | |
| Class six | 39 (84.8) | 7 (15.2) | 46 (11.5) | |