Table 2.

Distribution of transmitted drug resistance according to ARV classes and demographic characteristics of the Angolan naïve patients.

Independent variable	N (%)	NRTI mutation			NNRTI mutation			PI mutation
		No (%)	Yes (%)	p-value	No (%)	Yes (%)	p-value	No (%)	Yes (%)	p-value
Overall	45 (100)	44 (97.8)	1 (2.2)		36 (80.0)	9 (20.0)		44 (97.8)	1 (2.2)
Age distribution
≤ 30 years	19 (42.2)	19 (100)	0 (0.0)	1.000	13 (68.4)	6 (31.6)	0.137	18 (94.7)	1 (5.3)	0.422
> 30 years	26 (57.8)	25 (96.2)	1 (3.8)		23 (88.5)	3 (11.5)		26 (100)	0 (0.0)
Sex
Female	5 (11.1)	5 (100)	0 (0.0)	1.000	4 (80.0)	1 (20.0)	1.000	5 (100)	0 (0.0)	1.000
Male	40 (88.9)	39 (97.5)	1 (2.5)		32 (80.0)	8 (20.0)		39 (97.5)	1 (2.5)
Residence área
Non-urbanized	23 (51.1)	23 (100)	0 (0.0)	0.489	18 (78.3)	5 (21.7)	0.766	23 (100)	0 (0.0)	0.489
Urbanized	22 (48.9)	21 (95.5)	1 (4.5)		18 (81.8)	4 (18.2)		21 (95.5)	1 (4.5)
Occupation
Unemployed	8 (17.8)	7 (87.5)	1 (12.5)	0.030	6 (75.0)	2 (25.0)	0.651	8 (100)	0 (0.0)	0.638
Employed	37 (82.2)	37 (100)	0 (0.0)		30 (81.1)	7 (18.9)		36 (97.3)	1 (2.7)
HIV-1 subtypes
C	16 (35.6)	16 (100)	0 (0.0)	0.593	11 (68.8)	5 (31.3)	0.609	15 (93.8)	1 (6.3)	0.967
F1	7 (15.6)	6 (85.7)	1 (14.3)		5 (71.4)	2 (28.6)		7 (100)	0 (0.0)
G	5 (11.1)	5 (100)	0 (0.0)		5 (100)	0 (0.0)		5 (100)	0 (0.0)
A1	5 (11.1)	5 (100)	0 (0.0)		4 (80.0)	1 (20.0)		5 (100)	0 (0.0)
H	3 (6.7)	3 (100)	0 (0.0)		2 (66.7)	1 (33.3)		3 (100)	0 (0.0)
D	2 (4.4)	2 (100)	0 (0.0)		2 (100)	0 (0.0)		2 (100)	0 (0.0)
CRF02_AG	2 (4.4)	1 (100)	0 (0.0)		2 (100)	0 (0.0)		2 (100)	0 (0.0)
Other HIV-1 strains	5 (11.1)	5 (100)	0 (0.0)		5 (100)	0 (0.0)		5 (100)	0 (0.0)

Bold number indicate statistical significance for the Chi-square test or Fisher's exact test (p < 0.05).