Table 1.

Descriptive data for cases with schizophrenia and controls included in GWAS.

Subject Descriptor	Cases	Controls	Test
Number of subjects genotyped	738	733	-
Mean age in years (SD) †	40.9 (11.1)	41.0 (11.6)	F1,1469 =0.09 p=0.77
Proportion male (N) †	0.74 (544)	0.67 (493)	${\chi }_1^2=7.37,\mathrm{p}=0.007$
Ancestry proportions (inferred from self-report) †   African only (N)   European only (N)   Other (N)	0.29 (217) 0.57 (417) 0.14 (104)	0.30 (219) 0.56 (411) 0.14 (103)	${\chi }_2^2=0.04,\mathrm{p}=0.98$
Proportion with high school degree or more (N)	0.74 (543)	0.93 (684)	${\chi }_1^2=100,\mathrm{p}<0.0001$
Proportion married (N)	0.11 (78)	0.57 (415)	${\chi }_1^2=350,\mathrm{p}<0.0001$
Proportion employed (N)	0.06 (43)	0.75 (548)	${\chi }_1^2=727,\mathrm{p}<0.0001$
Mean years since first antipsychotic prescribed	14.2 (10.8)	-
Mean PANSS total score	74.0 (17.2)	-
Mean PANSS positive symptom score	17.8 (5.5)	-
Mean PANSS negative symptom score	19.9 (6.4)	-

^†Matching variable.