TABLE 1.

Prevalence of mental disorders^* in adults in the 12 months prior to interview

Mental disorder	Median 1-year prevalence	Interquartile range	No. of studies found	No. of studies included
Panic disorder	0.9	0.6–1.9	486	33
Social phobia	2.8	1.1–5.8	296	30
Simple phobia	4.8	3.5–7.3	296	25
Major depressive disorder	5.3	3.6–6.5	3,935	42
Obsessive-compulsive disorder	1.0	0.6–2.0	293	19
Drug abuse/dependence	1.8	1.1–2.7	1,417	11
Alcohol abuse/dependence	5.9	5.2–8.1	1,646	14
Personality disorders	9.1	9.0–14.4	620	5
Schizophrenia	0.5	0.3–0.6	2,637	23
Bipolar disorder	0.6	0.3–1.1	865	16
Dementia (age >65 years)	5.4	3.2–7.1	2,979	25

^*The following reference numbers in parentheses indicate the source of the information for the disorders listed: panic disorder (16, 48–77); social phobia (16, 49, 51–55, 57–62, 64, 68–76, 78–84); simple phobia (16, 49, 51–54, 57, 59–62, 64, 66–68, 79, 82, 85); major depressive disorder (21, 48–53, 59, 61, 62, 66, 69–77, 79, 86–102); obsessive-compulsive disorder (16, 48, 50, 53, 67, 89, 103–114); drug abuse/dependence (16, 51, 53, 54, 56, 87, 89, 115–118); alcohol abuse/dependence (16, 51, 53, 54, 56, 87, 89, 115, 118–123); personality disorders (124–128); schizophrenia (25) (point prevalence studies); bipolar disorder (48–53, 66, 72, 77, 79, 86–88, 129); dementia (29, 130–152).