Table II.

Table of maternal characteristics stratified by HIV status of infant^*

Maternal characteristics and pregnancy outcomes	HIV-negative infants (N=206)	HIV-positive infants (N=11)	p -value HIV-negative v. HIV-positive	Infants unknown HIV status (N=24)	p-value HIV- negative v. unknown
Age	28.2 (25–32)	26.5 (22–30)	0.138	24 (25–28)	0.018
WHO stage I and II	145 (70%)	3 (27%)	0.01	23 (85%)	0.637
III	55 (27%)	6 (55%)		4 (15%)
IV	6 (3%)	2 (18%)		0
TB at enrolment	15 (7%)	2 (18%)	0.214	1 (4%)	0.416
Gestation at enrolment	27 (23–31) (N=205)	32 (28–34) (N=11)	0.036	27 (23–31) (N=24)	0.835
CD4 at baseline	125 (81–164) (N=202)	174 (118–193) (N=11)	0.063	144 (78–186) (N=23)	0.18
VL at baseline	29 537 (8 969–75 758) (N=199)	32 086 (14 409–67 656) (N=11)	0.746	13 250 (1 800–40 176) (N=23)	0.024
Weeks on ART (median)	7.6 (4–12)	4.7 (2.7–7.6)	0.029	8 (5–12)	0.684
Gestation at birth	38 (36–40) (N=201)	40 (37–41) (N=11)	0.33	39 (38–41) (N=13)	0.241
Delivery mode: NVD	68 (33%)	2 (27%)		9 (37%)
Caesarean	54 (26%)	3 (18%)	0.43	6 (6%)	0.488
Unknown	85 (41%)	6 (55%)		10 (41%)
First follow-up viral load	<50 (0) (N=192)	54 (49–791) (N=11)	0.018	49 (0) (N=15)	0.387
Start to follow-up VL (days)	115 (112–123)	129 (112–158)	0.777	112 (112–116)	0.271
<400 at first follow-up	169 (82%)	8 (73%)		14 (58%)
400<10 000	7 (3%)	1 (9%)	0.235	0	1
>10 000	16 (8%)	2 (18%)		1 (4%)
Unknown	11 (5%)	0		10 (42%)
CD4 at first follow-up	248 (162–327) (N=196)	337 (182–455) (N=11)	0.207	247 (160–299) (N=15)	0.869
Start to follow-up CD4 (days)	115 (112–123)	119 (111–194)	0.584	112 (112–116)	0.384
Breastfeeding	6 (3%)	0	0.722	1 (4%)	0.312
Not breastfeeding	122 (58%)	7 (64%)		6 (26%)
Median age at PCR (days)	93 (75–124) (N=122)	87 (70–93) (N=7)

^*For continuous variables, data represent medians (interquartile range).