Table 1. Characteristics of HIV-infected pregnant women, overall and according to ZIKV co-infection.

Characteristic	Total (N = 219)		ZIKV infection		No ZIKV infection		p-value
			(N = 34)		(N = 185)
	N	%	N	%	N	%
Age (years)	219		34		185		0.77
<20	29	13.24	4	11.80	25	13.50
20–29	123	56.16	18	52.90	105	56.80
30–39	60	27.40	10	29.40	50	27.00
≥40	7	3.20	2	5.90	5	2.700
Ethnicity	219		34		185		0.23
White	58	26.48	12	35.20	46	24.90
Black	62	28.31	11	32.40	51	27.60
Mixed	99	45.21	11	32.40	88	47.50
Marital status	199		34		185		0.39
Single	80	36.53	17	50.00	63	34.10
Married	18	8.22	1	2.90	17	9.20
Stable union	99	54.34	16	47.10	103	55.70
Divorced	1	0.46	-	-	1	0.50
Widowed	1	0.46	-	-	1	0.50
Education (years)	219		34		185		0.75
0–4	19	8.68	4	11.80	15	8.10
5–9	98	44.75	15	44.10	83	44.90
10–14	98	44.75	15	44.10	83	44.90
>15	4	4.00	-	-	4	2.10
CD4 count (cells/mm3) at enrollment	219		34		185		0.32
< 200	29	13.25	2	5.9	27	14.16
≥ 200, <500	98	44.75	15	44.10	83	44.90
≥ 500	92	42.00	17	50.00	75	40.50
Detectable HIV viral load (copies/mL) at enrollment	219		34		185		0.13
Yes	170	77.63	23	67.60	147	79.50
No	49	22.37	11	32.40	38	20.50
Detectable HIV viral load (copies/mL) near delivery	210		32		178		0.14
Yes	77	36.77	8	85.00	69	38.80
No	133	63.33	24	75.00	109	61.20
Timing of ARV start	219		34		185		0.02
Before conception	79	36.07	18	52.94	61	32.97
During pregnancy	140	63.93	16	47.06	124	67.03
Symptoms consistent with arboviral infection	219		34		185		0.0012
Yes	23	10.50	10	29.4	13	7.0
No	196	89.50	24	70.6	72	93.0.