Table 1.

Summary of subject demographics.

	Comparison	Schizophrenia
N	22	22
Sex	5 F/17 M	5 F/17 M
Age (years)	70.5 ± 14.5	69.6 ± 11.6
Tissue pH	6.5 ± 0.3	6.4 ± 0.2
PMI (h)	13.4 ± 7	14.8 ± 5.3
On/Off/Unknown Rx	0/22	13/7/2
Race	13 W/3B/1 A/5 H	17 W/3B/0 A/2 H
Smoking status	3Y/10 N/5E/4U	9Y/5 N/3E/5U

Values presented are means ± standard deviation

Sex: F female, M male; PMI postmortem interval; Rx: On treated with antipsychotic medications at time of death; Off off antipsychotic medication for >6 weeks prior to death; Race: W white, B black, A Asian, H hispanic; Smoking: N never, Y yes, E no smoking at least 6 months, U unknown