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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: J Pediatr. 2010 Jun 8;157(2):337–339. doi: 10.1016/j.jpeds.2010.04.024

Table 1.

Maternal Characteristics.

Number (Percent) or Mean (STD)
Exposed (n=204) Unexposed (n=3,501) P-value
Race <0.001
    White 77 (37.7%) 1,615 (46.5%)
    Hispanic 47 (23.0%) 518 (14.9%)
    Pacific Islander 37 (18.1%) 337 (9.7%)
    Asian 28 (13.7%) 390 (11.2%)
    Black 9 (4.4%) 524 (15.1%)
    Other 6 (2.9%) 90 (2.6%)
Maternal Age 25.8 (5.6) 26.9 (5.9) 0.010
Low SES (Hollingshead V) 68 (33.5%) 245 (7.0%) <0.001
SES Hollingshead Social Position Index 24.7 (9.1) 37.6 (12.6) <0.001
Income < $10,000 68 (37.6%) 387 (11.5%) <0.001
No partner 115 (56.4%) 915 (26.2%) <0.001
Medicaid recipient 185 (93.9%) 1781 (51.6%) <0.001
Education < 12 years 93 (45.8%) 547 (15.7%) <0.001
Prenatal care visits < 5 33 (17.5%) 66 (1.9%) <0.001
GA 1st prenatal visit (wks) 14.6 (8.1) 9.3 (5.4) <0.001
Pregnancy weight Gain (lbs) 41.9 (19.9) 33.7 (15.2) <0.001
Maternal tobacco use 163 (79.9%) 706 (20.2%) <0.001
Maternal alcohol use 78 (38.2%) 733 (20.9%) <0.001
Maternal marijuana use 68(33.3%) 157 (4.5%) <0.001