Bacterial Vaginosis, Educational Level of Pregnant Women, and Preterm Birth: A Case-Control Study

Table 1

Exclusion criteria from the present study.

Pregnant patients showing cervical incompetence
Placenta previa
Placental abruption
Premature rupture of fetal membranes
Uterine anatomic disorders (bicornuate uterus, etc.)
Gemellary pregnancies