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. Author manuscript; available in PMC: 2014 Jun 16.
Published in final edited form as: Biol Psychiatry. 2009 Feb 5;65(12):1040–1047. doi: 10.1016/j.biopsych.2008.12.015

Table 1. Demographic Characteristics of the Sample.

Characteristic Category Psychotic Disorders (n = 111) No Diagnosis (n = 33) Analysis

F, df, p χ2, df, p
% Female Children N (%) 47 (42.34%) 141 (42.34%) .0, 1, 1.0
Birth Weight (Grams) Mean (SD) 3074.6 (523.19) 3130.7 (515.39) .98, 1, .323
Gestational Length (Weeks)a Mean (SD) 38.77 (4.81) 39.01 (3.65) .28, 1, .595
Mother's Agea Mean (SD) 24.17 (6.90) 24.17 (6.14) .00, 1, .994
Previous Pregnanciesa Mean (SD) 2.71 (2.66) 2.61 (2.64) .13, 1, .717
Earlier Deliveriesa Mean (SD) 3.40 (2.15) 2.98 (2.15) 2.23, 1, .136
Maternal Social Statusa Mean (SD) 3.61 (1.86) 4.07 (1.55) 6.37, 1, .01
Mother's Education (Years)a Mean (SD) 9.97 (2.02) 10.33 (2.18) 2.25, 1, .13
% African American Children N (%) 103 (92.79%) 308 (92.49%) .01, 1, .917
Right Handedness (Child)a N (%) 82 (79.61%) 264 (89.49%) 6.56, 1, .01
Influenza A (75th) N (%) 28 (25.23%) 84 (25.23%) .00, 1, 1.00
Influenza B (75th) N (%) 35 (31.53%) 80 (24.02%) 2.44, 1, .118
a

Data incomplete for noted variables.