. Author manuscript; available in PMC: 2011 Aug 1.

Published in final edited form as: Schizophr Res. 2010 Jun 9;121(1-3):46–54. doi: 10.1016/j.schres.2010.05.014

Table 2.

Demographic characteristics of DIBS and Non-DIBS cases

Characteristic	DIBS cases (n=17)	Non-DIBS cases^* (n=42)	p-value
% Female	5 (29.41%)	15 (35.71%)	0.643
Birth Weight (grams)	3508.73 (522.13)	3332.48(562.67)	0.245
Gestational Length (Weeks)	40.39 (1.58)	40.59 (2.26)	0.738
Maternal Age	28.12 (6.54)	27.91 (5.59)	0.90
Maternal Earlier Deliveries	1.88 (2.18)	2.05 (1.90)	0.77
Maternal Education <=HS graduate	12 (70.59)	24 (66.67)	0.775
Maternal Race
White	12 (70.59%)	17 (41.46%)	0.775
Black	5 (29.41%)	23 (56.10%)
Asian	0	1 (2.443%)
IL-8 (pg/ml)	952.04 (1083.45)	1020.81(1644.09)	0.875

Non-DIBS cases were defined as any cases of schizophrenia with available IL-8 data who were part of the larger PDS cohort, but not ascertained in the present study.

**Information was incomplete for 8 non-DIBS cases on maternal education, for 1 non-DIBS case on gestational length, and for 1 non-DIBS case on maternal and child race. For 3 DIBS gravidas maternal race was incomplete; therefore this variable was extrapolated from child's race for these gravidas.