Table 3 Cox proportional hazards regression models for mortality and associated risk factors
| Â | All-cause deaths | AIDS-related deaths | Non-AIDS-related deaths | |||
|---|---|---|---|---|---|---|
Univariate analysis | Multivariate analysis | Univariate analysis | Multivariate analysis | Univariate analysis | Multivariate analysis | |
Gender | ||||||
 Male | 1.00 | – | – | – | 1.00 | – |
 Female | 1.93 (1.10–3.37) | – | – | – | 3.83 (1.83–7.98) | – |
Age at ART initiation | ||||||
 18–29 | 1.00 | 1.00 | 1.00 | – | 1.00 | 1.00 |
 30–39 | 2.89 (1.38–6.08) | 2.02 (0.95–4.30) | 2.89 (1.19–7.03) | – | 1.88 (0.31–11.23) | 1.43 (0.24–8.61) |
 ≥ 40 | 9.20 (4.78–17.72) | 5.62 (2.85–11.10) | 7.13 (3.22–15.78) | – | 20.55 (4.96–85.22) | 14.10 (3.37–59.12) |
Marital status | ||||||
 Unmarried | 1.00 | – | 1.00 | – | 1.00 | – |
 Married | 3.48 (2.20–5.51) | – | 2.63 (1.49–4.62) | – | 8.96 (3.14–25.56) | – |
 Divorced | 3.04 (1.69–5.48) | – | 2.74 (1.34–5.60) | – | 6.67 (1.95–22.80) | – |
 Widowed | 10.46 (4.29–25.52) | – | 4.89 (1.13–21.07) | – | 43.28 (10.81–173.30) | – |
Transmission category | ||||||
 Homosexuals | 1.00 | 1.00 | 1.00 | – | 1.00 | 1.00 |
 Heterosexuals | 2.15 (1.40–3.31) | 1.49 (0.97–2.31) | 1.89 (1.06–3.37) | – | 2.75 (1.36–5.59) | 2.07 (1.01–4.20) |
 IDUs | 3.01 (0.94–9.64) | 1.25 (0.39–4.06) | 5.07 (1.55–16.59) | – | – | – |
 Blood and plasma donors | 9.94 (3.01–31.92) | 5.21 (1.54–17.67) | – | – | 29.67 (8.61–102.29) | 19.81 (5.62–69.89) |
BMI (kg/ m2) | ||||||
 < 18.5 | 1.00 | 1.00 | 1.00 | – | – | – |
 18.5–24.9 | 0.40 (0.27–0.60) | 0.62 (0.40–0.96) | 0.46 (0.27–0.79) | – | – | – |
 25–19.9 | 0.20 (0.08–0.46) | 0.39 (0.16–0.97) | 0.12 (0.03–0.51) | – | – | – |
 ≥ 30 | 0.66 (0.16–2.76) | 1.56 (0.36–6.76) | 0.60 (0.08–4.49) | – | – | – |
CD4 + lymphocyte counts (/μl) | ||||||
 < 50 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | – |
 50–99 | 0.71 (0.42–1.21) | 0.87 (0.51–1.50) | 0.63 (0.33–1.22) | 0.78 (0.40–1.52) | 0.92 (0.34–2.49) | – |
 100–199 | 0.50 (0.31–0.81) | 0.94 (0.56–1.57) | 0.38 (0.20–0.71) | 0.67 (0.350–1.30) | 0.95 (0.42–2.15) | – |
 200–349 | 0.13 (0.08–0.23) | 0.32 (0.17–0.59) | 0.10 (0.05–0.20) | 0.21 (0.09–0.46) | 0.21 (0.08–0.53) | – |
 350–499 | 0.04 (0.02–0.12) | 0.15 (0.05–0.44) | – | – | 0.18 (0.06–0.57) | – |
 ≥ 500 | 0.06 (0.02–0.17) | 0.25 (0.09–0.75) | – | – | 0.19 (0.05–0.70) | – |
Types of comorbidities | ||||||
 0 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
 1 | 6.10 (3.95–9.43) | 2.66 (1.64–4.30) | 9.25 (5.26–16.24) | 3.92 (2.14–7.17) | 3.99 (1.91–8.34) | 2.70 (1.27–5.74) |
 2 | 10.53 (6.26–17.69) | 3.61 (2.03–6.40) | 13.74 (6.92–27.31) | 4.61 (2.20–9.65) | 7.58 (3.19–17.99) | 5.27 (2.19–12.66) |
 ≥ 3 | 13.41 (7.34–24.51) | 3.67 (1.86–7.26) | 14.70 (6.26–34.480) | 4.46 (1.81–10.98) | 9.91 (3.69–26.66) | 6.75 (2.42–18.87) |