Table 2.

Comparison between prevalence rates of psychiatric and substance use disorders among recently admitted prisoners (MHPP) and the general population (MHGP) in the Nord and Pas-de-Calais departments of France.

	MHPP (n = 622)		MHGP (n = 1,866)		Comparison
	Prevalence (%)	CI 95%	Prevalence (%)	CI 95%	Odds Ratio	CI 95%	p-value
Any affective disorder	31.2	27.5–34.8	14.6	13.0–16.2	2.7	2.1–3.3	<0.001
Major depression	27.2	23.7–30.7	11.3	9.9–12.7	2.9	2.3–3.7	<0.001
Recurrent major depression	15.8	12.9–18.6	5.1	4.1–6.1	3.4	2.6–4.6	<0.001
Dysthymia	3.2	1.8–4.6	2.1	1.4–2.7	1.6	0.9–2.7	0.113
Past or current manic episode	7.1	5.1–9.1	2.7	2.0–3.5	2.7	1.8–4.1	<0.001
Any anxiety disorder	44.4	40.5–48.3	21.2	19.4–23.1	3.0	2.4–3.6	<0.001
Agoraphobia	6.4	4.5–8.4	1.9	1.3–2.6	3.5	2.2–5.5	<0.001
Panic disorder	13.0	10.4–15.7	3.6	2.8–4.5	4.0	2.8–5.5	<0.001
Panic disorder with agoraphobia	1.1	0.3–2.0	0.4	0.1–0.7	3.0	1.1–8.7	0.039
Social anxiety disorder	6.4	4.5–8.4	3.6	2.8–4.5	1.8	1.2–2.7	0.004
Generalized anxiety disorder	25.2	21.8–28.7	12.9	11.4–14.4	2.3	1.8–2.9	<0.001
Post-traumatic stress disorder	5.0	3.3–6.7	0.9	0.4–1.3	6.1	3.3–11.2	<0.001
Any substance use disorders	53.5	49.6–57.5	12.9	11.4–14.4	7.8	6.3–9.6	<0.001
Alcohol abuse	11.7	9.2–14.3	2.6	1.9–3.4	4.9	3.4–7.2	<0.001
Alcohol dependence	23.5	20.1–26.8	5.5	4.5–6.6	5.3	4.0–6.9	<0.001
Drug (excluding nicotine) abuse	4.5	2.9–6.1	0.2	0.0–0.4	27.7	14.1–111.2	<0.001
Drug (excluding nicotine) dependence	26.7	23.2–30.2	6.7	5.6–7.8	6.1	4.8–7.8	<0.001
Heroin a	9.2	1.9-16.4	0.2	0.0–1.3	46.9	16.9–129.9	<0.001
Cocaine/crack a	9.3	2.9-15.7	1.1	0.0–3.4	9.1	5.4–15.0	<0.001
Marijuana a	45.2	40.4-50.0	6.9	4.4–9.4	11.2	8.8–14.2	<0.001
Amphetamines a	1.1	0.0-6.4	0.4	0.0–3.6	2.6	0.9–7.3	0.061
Psychotropic drugs a	1.3	0.0–7.2	0.3	0.0–3.2	4.0	1.4–11.7	<0.001
Opioid substitution therapy a	2.6	0–9.6	0.2	0.0–2.2	12.3	4.1–36.9	<0.001
Any psychotic disorder	6.9	4.9–8.9	2.3	1.6–3.0	3.1	2.0–4.9	<0.001
Current isolated psychotic syndrome	0.5	0.0–1.0	0.2	0.0–0.4	2.3	0.5–10.2	0.283
Past isolated psychotic syndrome	1.6	0.6–2.6	0.4	0.1–0.7	3.8	1.5–9.7	0.005
Current recurrent psychotic syndrome	2.7	1.5–4.0	1.1	0.6–1.6	2.5	1.3–4.7	0.006
Past recurrent psychotic syndrome	2.1	1.0–3.2	0.5	0.2–0.9	4.0	1.7–9.2	0.001
Suicide risk	31.4	27.7–35.0	12.5	11.0–14.0	2.9	2.3–3.5	<0.001
Low	15.8	12.9–18.6	8.4	7.1–9.6	2.1	1.6–2.7	<0.001
Moderate	3.4	2.0–4.8	2.5	1.8–3.2	1.4	0.8–2.3	0.257
High	12.2	9.6–14.8	1.7	1.1–2.2	8.2	5.4–12.6	<0.001

A ratio of one case (MHPP) to three controls (MHGP) matching on age and sex was used.

Abbreviations: MHGP, Mental Health in the General Population survey; MHPP, Mental Health in the Prison Population survey.

^aUse, abuse, or dependence.