Table 3. Univariable analysis for event-free survival assessing potential risk factors.
| Variable | Available cases | HR | 95% CI | P |
|---|---|---|---|---|
| Gender | 322 | 0.469 | ||
| female versus male | 124 vs. 198 | 0.79 | 0.41 to 1.50 | |
| Active smoking | 298 | 0.282 | ||
| yes versus no | 48 vs. 250 | 1.60 | 0.70 to 3.63 | - |
| History of smoking | 274 | 0.580 | ||
| yes versus no | 50 vs. 224 | 1.33 | 0.49 to 3.60 | - |
| Hypertension | 319 | 0.311 | ||
| yes versus no | 307 vs. 12 | 0.51 | 0.16 to 1.68 | |
| Diabetes mellitus | 313 | 0.622 | ||
| yes versus no | 51 vs. 262 | 1.26 | 0.52 to 3.08 | |
| Hypercholesterinemia | 314 | 0.756 | ||
| yes versus no | 202 vs. 112 | 1.12 | 0.54 to 2.31 | |
| Hyperlipidemia | 318 | 0.764 | ||
| yes versus no | 131 vs. 102 | 1.31 | 0.58 to 2.94 | |
| mixed versus no | 85 vs. 102 | 1.05 | 0.40 to 2.72 | |
| Cerebrovascular disease | 317 | 0.013 | ||
| yes versus no | 45 vs. 272 | 2.76 | 1.31 to 5.79 | |
| Peripheral artery disease | 313 | 0.406 | ||
| yes versus no | 42 vs. 271 | 1.45 | 0.62 to 3.39 | |
| Coronary artery disease | 319 | 0.080 | ||
| yes versus no | 53 vs. 266 | 1.93 | 0.94 to 3.96 | |
| Chronic heart insufficiency | 317 | 0.380 | ||
| yes versus no | 19 vs. 298 | 1.58 | 0.60 to 4.17 | |
| Age at the start of dialysis | 322 | 1.07 | 1.04 to 1.10 | <0.001 |
| Body mass index | 319 | 1.00 | 0.93 to 1.08 | 0.963 |
| C-related protein | 289 | 1.00 | 0.91 to 1.11 | 0.934 |
| Fibrinogen | 183 | 1.002 | 1.000 to 1.005 | 0.099 |
| Dialysis time at time of wait listing | 313 | 1.012 | 0.996 to 1.027 | 0.178 |
Estimated hazard ratio (HR) for event-free survival with 95% confidence interval (CI) and p-value of the likelihood ratio test. For pairwise comparisons, confidence intervals instead of p-values are given (p-value of Wald test ≤ 0.05 if and only if confidence interval does not contain 1).