Table S1.

Demographic information

Subjects	Average age (range), y	Symptoms: BPRS	Age of onset, y	Duration, y	Weight, pounds	BMI	Current smokers, %	WASI IQ
Patients (54 males/20 females)	40.5 ± 11.6 (18–61)	2.1 ± 0.5	18.1 ± 8.9	20.1 ± 14.2	188.8 ± 37.2	30.5 ± 6.2	30	93.5 ± 16.5
Controls (76 males/37 females)	41.0 ± 11.9 (18–61)	N/A	N/A	N/A	184.2 ± 41.0	28.0 ± 4.8	23	101 ± 17.1
Siblings (14 males/27 females)	38.9 ± 14.9 (18–61)	N/A	N/A	N/A	189.1 ± 40.0	27.5 ± 4.9	25	95.7 ± 16.5
Patient–control group difference, P value	0.75				0.34	0.25	0.32	0.07

This study included n = 74 schizophrenia probands (54 males and 20 females; age = 40.0 ± 11.6 y; range = 18–61 y) and n = 113 healthy proband controls (76 males and 37 females; age = 41.0 ± 11.9 y; range = 18–61 y) frequency-matched in age and sex. There were no significant differences between patients and controls in body mass index (BMI), current smoker status, and Wechsler Abbreviated Scale of Intelligence (WASI) intelligence quotient (IQ) scores. N/A, not applicable.