Table 4. Cox Proportional Hazards Analysis for Mortality.

Variable	n (%)	Univariate HR (95% CI)	Multivariate HR (95% CI)
Age at initial ART (yr)
≤40	1355 (54.8)	1
>40	1119 (45.2)	3.83 (2.46–5.95)	3.59 (2.3–5.59)
Sex
Male	2293 (92.7)	1.34 (0.62–2.88)	1.29 (0.59–2.8)
Female	181 (7.3)	1
Median CD4 counts at initial ART (cells/mm³)
<100	706 (28.5)	3.67 (1.74–7.71)	2.56 (1.17–5.61)
100–199	475 (19.2)	1.78 (0.78–4.06)	1.38 (0.59–3.22)
200–349	832 (33.6)	1.43 (0.65–3.17)	1.27 (0.57–2.85)
≥350	461 (18.6)	1
Median viral load counts at initial ART (copies/mL)
<10000	568 (23)	1
10000–100000	1036 (41.9)	1.15 (0.66–2.01)	1.05 (0.59–1.86)
>100000	870 (35.2)	1.92 (1.12–3.27)	1.41 (0.8–2.49)
Year of initial ART
2001–2003	144 (5.8)	1.36 (0.59–3.15)	1.23 (0.53–2.86)
2004–2006	327 (13.2)	1.08 (0.51–2.32)	0.87 (0.4–1.88)
2007–2009	615 (24.9)	1.48 (0.76–2.88)	1.23 (0.62–2.42)
2010–2012	686 (27.7)	1.57 (0.81–3.06)	1.27 (0.65–2.48)
2013–2015	702 (28.4)	1
Median time until starting ART since HIV diagnosis (month)
≤2	1078 (43.6)	1
>2	1396 (56.4)	0.74 (0.51–1.07)	0.98 (0.66–1.45)

HR, hazard ratio; CI, confidence interval; ART, antiretroviral therapy; HIV, human immunodeficiency virus.