Table 3. Cox regression analysis of survival according to variables.
| Variables | Univariate | Multivariate | |||
|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | ||
| Age per increase 1 yr | 1.11 (1.10–1.12) | < 0.001 | 1.10 (1.09–1.11) | < 0.001 | |
| Sex, ref: male | 0.61 (0.47–0.79) | < 0.001 | 0.48 (0.37–0.63) | < 0.001 | |
| CCI score | 1.35 (1.30–1.39) | < 0.001 | 1.15 (1.09–1.21) | < 0.001 | |
| Hypertension | 8.32 (6.21–11.16) | < 0.001 | 1.37 (0.99–1.90) | 0.057 | |
| CKD group | |||||
| ND-CKD, ref: Non-CKD | 2.87 (1.86–4.42) | < 0.001 | 0.79 (0.49–1.26) | 0.318 | |
| DD-CKD, ref: Non-CKD | 9.38 (3.49–25.26) | < 0.001 | 2.96 (1.09–8.06) | 0.033 | |
| DD-CKD, ref: ND-CKD | 3.27 (1.13–9.47) | 0.029 | 3.77 (1.29–11.06) | 0.016 | |
Multivariate analysis was adjusted for age, sex, CCI score, hypertension, and CKD groups.
CCI = Charlson's comorbidity index, HR = hazard ratio, CI = confidence interval, Non-CKD = non-chronic kidney disease, ND-CKD = non-dialysis-chronic kidney disease, DD-CKD = dialysis dependent chronic kidney disease.