Table 2. Relation of study groups to overall mortality using Cox proportional hazards model.
| Parameters | Univariable |
Multivariable |
||
|---|---|---|---|---|
| HR (95% CI) | p | HR (95% CI) | p | |
| Study groups | ||||
| ABI ≥ 0.95 and AoAC ≤ 4 | 1 | 1 | ||
| ABI ≥ 0.95 and AoAC > 4 | 1.774 (0.661–4.763) | 0.255 | 1.487 (0.497–4.453) | 0.478 |
| ABI < 0.95 and AoAC ≤ 4 | 2.417 (0.932–6.267) | 0.069 | 2.314 (0.828–6.462) | 0.110 |
| ABI < 0.95 and AoAC > 4 | 6.865 (3.169–14.871) | <0.001 | 4.913 (1.932–12.497) | 0.001 |
| Age tertile (year) | ||||
| <53 | 1 | 1 | ||
| 53–63 | 2.765 (0.996–7.677) | 0.051 | 2.124 (0.721–6.259) | 0.172 |
| ≥63 | 6.142 (2.368–15.932) | <0.001 | 2.396 (0.778–7.381) | 0.128 |
| Male gender | 1.310 (0.739–2.321) | 0.355 | — | — |
| Duration of dialysis (per 1 year) | 0.980 (0.486–1.975) | 0.955 | — | — |
| Diabetes mellitus | 2.337 (1.310–4.169) | 0.004 | 1.494 (0.783–2.852) | 0.223 |
| Hypertension | 1.602 (0.775–3.314) | 0.204 | — | — |
| Coronary artery disease | 1.970 (1.066–3.639) | 0.030 | 1.095 (0.541–2.214) | 0.801 |
| Cerebrovascular disease | 3.017 (1.456–6.251) | 0.003 | 1.075 (0.462–2.499) | 0.867 |
| Systolic blood pressure (per 1 mmHg) | 1.005 (0.995–1.015) | 0.304 | — | — |
| Diastolic blood pressure (per 1mmHg) | 0.989 (0.971–1.008) | 0.266 | — | — |
| CTR > 50% | 1.711 (0.926–3.161) | 0.086 | — | — |
| Body mass index (per 1 kg/m2) | 0.975 (0.901–1.055) | 0.530 | — | — |
| Laboratory parameters | ||||
| Albumin (per 0.1 g/dL) | 0.785 (0.714–0.862) | <0.001 | 0.786 (0.683–0.904) | 0.001 |
| Triglyceride (per 1 mg/dL) | 0.999 (0.996–1.002) | 0.438 | — | — |
| Total cholesterol (per 1 mg/dL) | 0.991 (0.983–0.999) | 0.024 | 0.995 (0.986–1.003) | 0.189 |
| HDL-cholesterol (per 1 mg/dL) | 0.986 (0.959–1.014) | 0.331 | — | — |
| LDL-cholesterol (per 1 mg/dL) | 0.996 (0.986–1.006) | 0.467 | — | — |
| Hemoglobin (per 1 g/dL) | 0.900 (0.720–1.125) | 0.356 | — | — |
| Creatinine (per 1 mg/dL) | 0.800 (0.698–0.917) | 0.001 | 1.135 (0.950–1.356) | 0.163 |
| Total calcium (per 1 mg/dL) | 1.124 (0.805–1.569) | 0.493 | — | — |
| Phosphorous (per 1 mg/dL) | 0.984 (0.775–1.250) | 0.894 | — | — |
| Calcium-phosphorous product (per 1 mg2/dL2) | 1.001 (0.977–1.026) | 0.928 | — | — |
| iPTH (per 1 pg/mL) | 1.367 (0.695–2.690) | 0.365 | — | — |
| Uric acid (per 1 mg/dL) | 0.856 (0.699–1.048) | 0.132 | — | — |
| Kt/V (per 1) | 0.368 (0.116–1.172) | 0.091 | — | — |
Values express as hazard ratios (HR) and 95% confidence interval (CI). Abbreviations are same as Table 1.