Table 4.

Distribution of age for main groups of mental disorders.

Age	Anxiety Disorders	Affective Disorders	Substance Disorders	Tic Disorders	Disruptive Disorders	Other Disorders	Any Disorders
6years	1.79 (1.01–2.57)	1.07 (0.47–1.68)	0 (0–0)	2.06 (1.23–2.90)	9.94 (8.18–11.69)	0.27 (0.04–0.57)	13.52 (11.51–15.53)
7years	1.37 (0.76–1.99)	1.95 (1.22–2.68)	0 (0–0)	3.10 (2.19–4.02)	9.82 (8.25–11.39)	0.36 (0.04–0.68)	14.44 (12.59–16.29)
8years	4.47 (3.32–5.61)	1.27 (0.66–1.90)	0 (0–0)	3.03 (2.08–3.98)	12.60 (10.77–14.45)	0.32 (0.06–0.63)	16.36 (14.31–18.41)
9years	5.00 (3.88–6.11)	1.51 (0.88–2.13)	0.14 (0.05–0.33)	3.56 (2.61–4.51)	11.29 (9.67–12.92)	0.41 (0.08–0.74)	17.11 (15.18–19.04)
10years	6.21 (5.07–7.34)	1.55 (0.97–2.13)	0.63 (0.26–1.00)	3.74 (2.84–4.63)	10.86 (9.40–12.33)	0.17 (0.02–0.37)	16.55 (14.80–18.30)
11years	5.41 (4.41–6.41)	1.12 (0.66–1.59)	0.51 (0.19–0.83)	3.01 (2.25–3.71)	9.95 (8.63–11.28)	0.31 (0.06–0.55)	15.01 (13.42–16.60)
12years	3.52 (2.68–4.37)	1.90 (1.27–2.52)	0.65 (0.28–1.02)	3.25 (2.44–4.06)	10.51 (9.11–11.92)	0.81 (0.40–1.22)	15.99 (14.32–17.67)
13years	3.74 (2.94–4.53)	2.83 (2.13–3.52)	0.59 (0.27–0.91)	1.87 (1.30–2.49)	9.17 (7.96–10.37)	2.23 (1.62–2.85)	15.60 (14.08–17.11)
14years	3.42 (2.69–4.15)	2.95 (2.27–3.64)	1.05 (0.64–1.47)	0.42 (0.16–0.68)	6.84 (5.82–7.85)	2.87 (2.20–3.54)	14.77 (13.33–16.20)
15years	3.56 (2.81–4.31)	5.43 (4.51–6.34)	1.91 (1.36–2.46)	0.17 (0.03–0.34)	3.60 (2.85–4.36)	1.65 (1.14–2.17)	12.68 (11.34–14.02)
16years	4.08 (3.23–4.95)	8.23 (7.03–9.42)	4.00 (3.14–4.84)	0.30 (0.05–0.53)	3.10 (2.35–3.86)	2.07 (1.45–2.69)	16.21 (14.60–17.81)
sum	3.94 (3.67–4.21)	2.98 (2.75–3.22)	1.01 (0.87–1.15)	2.03 (1.84–2.23)	8.42 (8.03–8.80)	1.21 (1.06–1.37)	15.24 (14.74–15.74)
χ2	82.55	326.55	262.55	182.81	235.66	153.54	25.69
p	0.001 **	0.001 **	0.001 **	0.001 **	0.001 **	0.001 **	0.004 **

* p < 0.05, ** p < 0.01.