Multivariable Cox analysis of the independent factors for survival
| Factor | HR | 95% CI | P value |
| Age (every 1-year increase) | 1.025 | 1.013 to 1.043 | <0.001 |
| Serum potassium (every 1 mmol/L increase) | 0.678 | 0.487 to 0.970 | 0.032 |
| Diabetes | 1.705 | 0.978 to 2.967 | 0.067 |
| USHD (compared with USPD) | 2.220 | 1.298 to 3.790 | 0.004 |
USHD, urgent-started haemodialysis; USPD, urgent-started peritoneal dialysis.