Table 2.

Demographic variables and covariates

Group	Age at death (years)	PMI (h)a	Fixation time (months)b	Age of illness onset (years)b
Male controls	59.9 ± 11.9	36.4 ± 15.9	20.9 ± 9.8	NA
Female controls	73.2 ± 12.4	36.9 ± 19.0	26.9 ± 13.3	NA
Male schizophrenia	59.5 ± 15.8	35.4 ± 21.2	32.8 ± 20.1	24.4 ± 6.4
Female schizophrenia	71.6 ± 14.5	35.0 ± 23.6	58.2 ± 20.2	38.4 ± 15.5

^aInaccurate information for six cases (see text for details).

^bInaccurate information for one case (fixation time uncertain by up to 6 months in one case, age of onset not recorded for one case).

NA = Not applicable.