From: Basic vaginal pH, bacterial vaginosis and aerobic vaginitis: prevalence in early pregnancy and risk of spontaneous preterm delivery, a prospective study in a low socioeconomic and multiethnic South American population
BV status
34-37 wks
Deliveries > = 37 wks
Total
BV+
9
230
239
BV Int
2
97
99
11
327
338