|  | Study population | Diagnosed mental disorder | p-value | ||||
---|---|---|---|---|---|---|---|---|
No | Yes | |||||||
N | % | N | % | N | % | Â | ||
Patients | Total | 609,381 | Â | 512,710 | 84.1 | 96,671 | 15.9 | Â |
Age (years) | Mean | 15.57 |  | 14.69 |  | 20.23 |  |  < 0.001a |
0–12 | 246,275 | 40.4 | 231,079 | 93.8 | 15,196 | 6.2 |  < 0.001b | |
13–18 | 123,109 | 20.2 | 100,582 | 81.7 | 22,527 | 18.3 |  | |
18–24 | 114,710 | 18.8 | 87,918 | 76.6 | 26,792 | 23.4 |  | |
25–30 | 125,287 | 20.6 | 93,131 | 74.3 | 32,156 | 25.7 |  | |
Sex | Female | 296,556 | 48.7 | 251,825 | 84.9 | 44,731 | 15.1 |  < 0.001c |
Male | 312,825 | 51.3 | 260,885 | 83.4 | 51,940 | 16.6 | Â | |
Socioeconomic status | Low | 47,416 | 7.8 | 36,945 | 77.9 | 10,471 | 22.1 |  < 0.001b |
Medium | 312,135 | 51.2 | 254,306 | 81.5 | 57,829 | 18.5 | Â | |
High | 249,830 | 41.0 | 221,459 | 88.6 | 28,371 | 11.4 | Â |