Table 2. Demographic information for the three diagnostic groups from the McLean 74 Cohort.

	Bipolar	Control	Schizophrenia	F, t or χ2	P
Age	61.75 (19.20)	58.59 (15.12)	60.71 (12.07)	0.24a	0.79
Sex	4M:15F	17M:12F	14M:6F	10.38b	0.006
PMI	22.25 (5.39)	21.76 (3.85)	23.86 (7.20)	0.92a	0.41
pH	6.45 (0.76)	6.45 (0.17)	6.49 (0.30)	0.07a	0.93
Side of brain	10L:9R	14L:15R	10L:10R	0.087b	0.96
Suicidal death	4 (1 violent)	0	0	10.96b	0.027
Drug/Alc hx	0.42 (0.51)	0.69 (0.66)	0.30 (0.47)	6.84b	0.15
Severity of substance abuse	0.58 (1.39)	0.41 (0.95)	0.70 (1.45)	0.33b	0.72
Severity of alcohol abuse	0.95 (1.43)	0.86 (1.73)	0.60 (1.23)	0.39b	0.75
Age of onset	23.53 (7.67)	—	20.52 (3.52)	1.45c	0.16
Duration of illness	39.69 (18.27)	—	40.18 (12.09)	0.091c	0.93
Use of MS	9	—	1	9.17b	0.002

Abbreviation: MS, mood stabilizer.

^aANOVA.

^bχ² test.

^ct-test for bipolar versus schizophrenia.

Bold values indicate significant (P<0.05) values.