Table 1. Subject Demographics.

	Comparison	Schizophrenia
n	14	14
Age	77.6±10.1	77.5±11.0
Sex	7M/7F	7M/7F
Race	11W/2B/1A/0H	10W/2B/1A/1H
PMI (hours)	8.1±6.6	15.6±6.4
Tissue pH	6.5±0.3	6.5±0.2
On/Off Rx	0/14	8/6

Abbreviations: A, Asian; B, Black; F, female; H, Hispanic; M, male; PMI, postmortem interval; Rx, antipsychotic medication; W, white.

Values are expressed as means±SD. Off Rx indicates patients that had not received antipsychotic medications for 6 weeks or more at time of death.