Table 2.

Summary of demographic variables across combined cohort

	Control	Schizophrenia	P-value
Number of Subjects	153	153
Age	56.25 ± 20	55.27 ± 19	p = 0.67
Sex	101M : 52F	113M : 40F	p = 0.1
Brain pH	6.5 ± 0.28	6.39 ± 0.29	p = 0.001
PMI	21.95 ± 15.3	22.65 ± 15.2	p = 0.69

F, female; M, male; PMI, post-mortem interval. There were 319 samples collected across seven datasets of which 306 passed quality control analysis. The summary demographics (mean ± standard deviation) and t- test p-values for group differences are shown for those subjects used in the analysis. For sex we report the p-value generated from a chi-squared test for equality of proportions.