Table 1.

Clinical description of data used in the investigation

	Chronic patient sample							First- episode sample
Series	Kay& Sevy 1990	Caton et al., 1994;1995	Bell et al., 1994	Davidson et al., 1995	Bowie et al., 2008	Harvey et al., 2010	Total	Compton
setting	Inpatient	Urban community	Veterans hospital rehabilitation	Geriatric inpatient	Outpatient	Outpatient
n	239	400	150	305	238	195	1527	200
Age mean(sd)	33.1 (10.2)	38.8 (10.6)	40.2 (8.6)	75.7 (7.0)	56.6 (9.7)	44.0 (5.2)	48.9 (15.1)	23.6 (4.9)
% male	77	50	95	44	73	69	64	73