Table 1:

Demographic characteristics of cohort (n = 120)

Characteristic	N	%
Total	120	100.0
Maternal age at gestation
18–19	11	9.2
20–26	44	36.7
27–34	46	38.3
35–39	14	11.7
40–46	5	4.2
Maternal race
Non-Hispanic black	72	60.0
Non-Hispanic white	26	21.7
Hispanic	12	10.0
Other	10	8.3
Male infant	54	45.0
Gestational age <37 weeks	12	10.0
Tobacco use during pregnancy	26	21.7
Parity
Nulliparous	38	31.7
Multiparous	82	68.3