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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Genet Epidemiol. 2015 Jan 19;39(3):217–226. doi: 10.1002/gepi.21887

Table 6.

Demographic variables of the neonatal validation cohort

Variables Cases (N=243) Controls (N=149) p-value
Study source
 MFMU 220 (90.5) 90 (60.4) <0.001
 SCRN 23 (9.5) 59 (39.6)
Maternal age, years 23.9 (5.8) 24.5 (5.7) 0.34
Maternal race/ethnicity
 Caucasian 60 (24.7) 23 (15.4)
 African American 98 (40.3) 57 (38.3) 0.07
 Hispanic 81 (33.3) 66 (44.3)
 Other 4 (1.6) 3 (2.0)
Maternal parity
 Nulliparous 82 (33.7) 47 (31.5) 0.73
 Multiparous 161 (66.3) 102 (68.5)