Among pregnant and nonpregnant women combined, those with BV had higher concentrations of IL-1β (2.11 ± 0.85 versus 1.31 ± 0.83 pg/mL; P < .001) and IL-8 (3.15 ± 0.88 versus 2.85 ± 0.71 pg/mL; P = .004) compared to women without BV. Here, IL1B is linked to bacterial vaginosis.