Table 5 Univariable and multivariable logistic regression analysis of factors associated with in-hospital clinically-confirmed diagnosis of postpartum endometritis in postpartum infection study participants

Cesarean delivery

5.4 (2.9–10.1)

< 0.001

2.7 (1.2–6.2)

0.02

Number of days admitted to hospital

1.3 (1.2–1.4)

< 0.001

1.2 (1.1–1.3)

< 0.001

Multiparous

0.3 (0.2–0.6)

< 0.001

0.5 (0.2–1.0)

0.05

Formally employed

0.6 (0.4–1.0)

0.06

0.6 (0.3–1.1)

0.11

Number of vaginal exams in labor

1.0 (0.8–1.1)

0.76

0.9 (0.7–1.1)

0.20

HIV-infected

1.4 (0.7–2.6)

0.37

1.8 (0.0–4.1)

0.18

Age

0.9 (0.9–1.0)

< 0.001

0.9 (0.9–1.0)

0.16

Number of hours in labor

1.0 (1.0–1.0)

0.23

1.0 (1.0–1.0)

0.09

Referred from an outside facility

2.5 (1.4–4.4)

0.001

1.3 (0.6–2.7)

0.55

Diagnosis of obstructed labor

2.3 (1.2–4.5)

0.02

1.3 (0.5–3.1)

0.56

Admission to the floor at any time

0.5 (0.3–0.9)

0.009

0.8 (0.4–1.6)

0.57