Treatment start period

HIV positive

HIV negative

p

During labor and after childbirth

6

52

Before and during pregnancy

3

262

0.01

Premature rupture of membranes

Yes

6

8

0.0001

No

3

306

Duration of labor

extended

8

22

Normal

1

277

0.0001

Birth weight

<2500 g

7

107

≥2500 g

2

214

0.0096