Table 1.

Descriptive statistics

	Non-psychosis cluster	Psychosis cluster	Organic cluster
Number of patients in group	2592	495	3726
Percentage of patients in group	38.0	7.3	54.7
Age group, years
<65	1556	361	146
≥65	1036	134	3580
Gender
Male	852	247	1543
Female	1740	248	2183
Ethnicity
White	1946	365	2742
Black	15	16	18
Asian	17	27	53
Mixed	17	13	41
Other	13	15	20
Unknown	584	59	852