Table 4. Analysis of risk factors of all-cause mortality among older patients receiving ART at Newlands Clinic (2004–2020).

Characteristic	Hazard Ratio (95%CI)	p	Adjusted Hazard Ratio (95% CI)	p
Sex
Female	-	-	-	-
Male	1.27 (0.84–1.93)	0.262	2.29 (1.21–4.33)	0.010
ART commencement age	1.04 (1.0–1.1)	0.076	1.03 (0.99–1.07)	0.200
Married	-	-	-	-
Unmarried	1.27 (0.83–1.93)	0.273	2.06 (1.13–3.78)	0.019
Employed	-	-	-	-
Unemployed	1.75 (1.08–2.85)	0.024	2.01 (1.2–3.37)	0.008
Highest Education
Primary or none	-	-	-	-
Secondary or tertiary	0.77 (0.51–1.18)	0.230	0.83 (0.53–1.31)	0.428
ART Period
2004–2010	-	-	-	0.242
2011–2015	1.20 (0.75–1.92)	0.450	1.54 (0.93–2.56)
2016–2010	0.80 (0.38–1.69)	0.558	1.09 (0.49–2.39)
Baseline CD4 T-cell count (cells/μL)
<100	-	-	-	0.001
100–199	0.63 (0.39–1.02)	0.058	0.72 (0.44–1.16)
≥200	0.38 (0.22–0.67)	0.001	0.35 (0.19–0.63)
Prevalent Hypertension	0.59 (0.29–1.22)	0.157	0.76 (0.36–1.6)	0.464

Baseline WHO clinical stage was omitted from multivariable analysis due to collinearity with baseline CD4 T-cell count.