Table 1. Prevalence of mental disorders in adolescents in detention and in the general population.

	Point prevalence in detained adolescents, %*		Lifetime prevalence in detained adolescents, %	Lifetime prevalence in adolescents in the general population, %
	Males	Females
Mood disorder (any)	10·1% (4·0–14·0); 0·4–36·0%a1–a19	26·6% (15·8–33·3); 0·0–63·0%a2–a4,a6,a8,a9,a12,a13,a18,a20–a25	7·0–82·0%a6,a26–a29	14·3%a30
Major depressive disorder	10·8% (6·7–11·4); 0·9–14·0%a4–a7,a10,a11,a15,a16	7·4–36·0%a4,a6,a22†	4·7–40·4%a9,31–a35	1·3%a36
Anxiety disorder (any)	17·8% (11·9–22·1); 3·4–31·5%a2,3,a6,a13–a19,a23,a37	30·3% (26·0–31·4); 20·9–59·0%a2,a3,a6,a13,a22,a25,a27,a38	9·0–56·3%a5,a27,a29,a39,a40	6·5%a36
Post-traumatic stress disorder	14·1% (9·0–24·5); 0·0–53·0%a5–a8,a10,a11,a15,a16,a18,a23,a27,a37,a41–a47	20·0% (14·7–35·0); 13·0–65·1%a8,a20,a23,a27,a41–a43,a45	11·0–48·9%a9,a28,a33,a43	5·0%a30
Obsessive-compulsive disorder	4·9% (2·6–7·0); 0·4–9·0%a5,a6,a15,a16	2·0–7·4%‡a5,a6,a15,a16,a20,a35	0·4–9·0%a5,a6,a16,a20,a48	0·3–4·0%a49
Conduct disorder	73·5% (53·9–79·8); 26·0–95·0%a3–a8,a10–a12,a15–a17,a19,a34,a37,a41,a42,a50–a52	53·8% (43·1–77·5); 17·0–91·0%a3,a4,a6,a8,a12,a20–a22,a34,a41,a42,a53	13·9–100%a33,a40,a54–a56	2·1%a36
Oppositional defiant disorder	19·3% (14·5–48·0); 8·0–51·0%a3,a6,a8,a12,a16,a41,a57	39·7% (25·0–46·4); 17·5–62·0%a3,a6,a12,a21,a22,a41	7·6–22·4%a35,a39,a58,a59	3·6%a36
Schizophrenia	2·0%; 0·8–2·2%a5,a6,a51§	1·9%a6¶	2·2–4·0%a34,a60	0·5–1·5%a61

For references see appendix (pp 15–29).

^*Unless otherwise specified, data are median (IQR); range.

^†Reported as range only, as n=3.

^‡Reported as range only, as n=2.

^§Reported as median; range only as n=3.

^¶Reported as point estimate only, as n=1.