Skip to main content
. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: J Reprod Immunol. 2016 Feb 10;114:27–31. doi: 10.1016/j.jri.2016.02.001

Table 1.

Descriptive Statistics and Comparisons by Maternal Race

White (n=39)
Mean(SD) or n(%)		 Black (n=37)
Mean(SD) or n(%)		 t-test/χ2
p Value
Age 25.5 (3.4) 25.5 (4.8) 0.98
Education
    < High School Graduate
    High School Graduate
    Some College
    ≥ College Degree
3 (7.7%)
9 (23.1%)
14 (35.9%)
13 (33.3%)
3 (8.1%)
7 (18.9%)
15 (40.5%)
12 (32.4%)		 0.97
Annual Household Income
    <$15,000
    ≥$15,000
9 (23.1%)
30 (76.9%)
16 (43.2%)
21 (56.8%)		 0.06
Smoking Status
    Current Smoker
    Current Non-Smoker
5 (12.8%)
4 (87.2%)
33 (89.2%)
4 (10.8%)		 0.79
Gravidity
    1
    2
    3
    ≥4
12 (30.8%)
12 (30.8%)
7 (18.0%)
8 (20.5%)
6 (16.2%)
11 (29.7%)
12 (32.4%)
8 (21.6%)		 0.35
Parity
    0
    1
    ≥2
17 (43.6%)
12 (30.8%)
10 (25.6%)
8 (21.6%)
13 (35.1%)
16 (43.2%)		 0.10
Maternal Pre-Pregnancy BMI 28.4 (6.3) 27.1 (5.2) 0.34
Gestational Age at Deliverya 39.5 (1.0) 39.2 (1.1) 0.37
a

data available from n=37 White and n=36 Black participants