Table 1.

Summary Characteristics of Cross-Sectional Cohort

Variables	Aggregate (n = 191)	Control (n = 102)	Case (n = 89)	P Value
Sex, No. male/female	105/86	61/41	44/45	.19
Mode of delivery, No. vaginal/cesarean	128/63	68/34	60/29	1.00
Gestational age at birth, wk, mean ± SD	39.23 ± 1.17	39.27 ± 1.13	39.18 ± 1.23	.58
Age at sampling, mo, mean ± SD	3.09 ± 2.21	3.01 ± 2.19	3.18 ± 2.24	.59
Any antibiotics to date, No.	0	0	21	<.01
Severity score, mean ± SD	2.24 ± 3.01	0 ± 0	4.81± 2.65	NA
Severity group, mild/severe	NA	NA	30/59	NA

Abbreviation: NA, not applicable.