Table 2.

Associations Between Potential Confounders and Any Bacterial Infection During Pregnancy

	Bacterial Infection Status
Variable	Infection (n = 1065) Percent Exposed to Potential Confounder	No Infection (n = 6876) Percent Exposed to Potential Confounder	P Valuea
Maternal schizophrenia	1.7	1.6	0.74
Second-trimester exposure to analgesics	2.7	1.6	0.02
Third-trimester exposure to diuretics	5.7	5.1	0.42
Hypertension during pregnancy	19.5	18.5	0.43
Offspring of single mother	39.5	37.9	0.32
Breastfed ≤2 weeks	23.5	24.0	0.77
Low parental social status	55.1	51.6	0.10

aP values refer to tests of differences between proportions.