Table 4.

Relationship between virologic response to ARV during pregnancy and selective factors that may affect this response.

Factor	N (%) undetectable	N (%) detectable	P value
Country of origin			.16
US	39 (80)	10 (20)
Mexico	11 (79)	3 (21)
African country	15 (100)	0
HIV plasma RNA at first visit
≥50,000 copies/mL	6 (75)	2 (25)	.63
<50,000 copies/mL	72 (83)	15 (17)
Prepregnancy ARV			.27
Naive	33 (77)	10 (23)
Experienced	40 (87)	6 (13)
TDM			.38
Performed	53 (79)	14 (21)
Not performed	25 (89)	3 (11)
Adherence			.006
<50%	1 (100)	0
50% to 95%	3 (50)	3 (50)
>95%	29 (94)	2 (6)
Psychosocial support			.01
Utilized	63 (89)	8 (11)
Not utilized	15 (63)	9 (37)