Maternal Obesity and Rectovaginal Group B Streptococcus Colonization at Term

Table 1

Characteristics of study subjects ( = 7,711).

Variable	Obese; ()	Nonobese; ()
Maternal age, mean (sd)	25.4 (5.9)	24.2 (6.2)	<0.001
Gestational age in weeks, mean (sd)	39.0 (1.2)	38.9 (1.2)	<0.001
Race, (%)
Black	3,380 (75.2)	2,135 (66.3)	<0.001
Caucasian	801 (17.8)	710 (22.1)
Primiparous, (%)	1,517 (33.8)	1,383 (43.0)	<0.001
Vaginal delivery, (%)	2,875 (64.0)	2505 (77.8)	<0.001
Smoking, (%)	794 (17.7)	594 (18.5)	0.381
Alcohol, (%)	51 (1.1)	52 (1.6)	0.070
Illicit drug use, (%)	414 (9.2)	356 (11.1)	0.008
Diabetes mellitus, (%)	134 (3.0)	15 (0.47)	<0.001
Chronic hypertension, (%)	212 (4.7)	37 (1.2)	<0.001

sd: standard deviation.