Table 2.
Prevalence of various psychiatric disorder groups among 6 years old according to DSM-IV and ICD-10 diagnostic classifications and gender
| Psychiatric disorders | DSM-IV | ICD-10 | ||||||
|---|---|---|---|---|---|---|---|---|
| Boys N (%) | Girls N (%) | Chi square | p value | Boys N (%) | Girls N (%) | Chi square | p value | |
| Any diagnosis | 270 (14.7) | 205 (11.7) | 6.734 | 0.009 | 260 (14.1) | 198 (11.3) | 6.292 | 0.012 |
| Any anxiety disorder | 162 (8.8) | 153 (8.8) | 0.002 | 0.961 | 155 (8.4) | 153 (8.8) | 0.128 | 0.721 |
| Any depressive disorder | 27 (1.5) | 19 (1.1) | 1.021 | 0.312 | 27 (1.5) | 19 (1.1) | 1.021 | 0.312 |
| Any ADHD disorder/hyperkinetic | 62 (3.4) | 31 (1.8) | 9.028 | 0.003 | 56 (3.1) | 23 (1.3) | 12.407 | <0.001 |
| Any oppositional/conduct disorder | 68 (3.7) | 26 (1.5) | 17.110 | <0.001 | 66 (3.6) | 25 (1.4) | 16.845 | <0.001 |
| Autism | 8 (0.4) | 2 (0.1) | 3.307 | 0.069 | 8 (0.4) | 2 (0.1) | 3.307 | 0.069 |
| Tic disorder and Tourette Syndrome | 9 (0.5) | 4 (0.2) | 1.680 | 0.195 | 9 (0.5) | 4 (0.2) | 1.680 | 0.195 |
The 2004 Pelotas Birth Cohort (N = 3,585)
ADHD Attention deficit hyperactivity disorder