Table 3. Multivariate Cox proportional hazard models of independent factors of survival.a .
| Total patients (N = 1028) | Model 1 | Model 2 | Model 3 | |||
| HR (95% CI) | P Value | HR (95% CI) | P Value | HR (95% CI) | P Value | |
| Type of referral | ||||||
| Early referral | Ref | Ref | Ref | |||
| Late referral | 2.16 (1.32–3.53) | 0.002 | 2.28 (1.39–3.74) | 0.001 | 2.38 (1.27–4.45) | 0.007 |
| Age (years) | 3.73 (2.43–5.73) | <0.001 | 1.06 (1.03–1.09) | <0.001 | ||
| Gender (female) | 0.87 (0.53–1.44) | 0.599 | 1.11 (0.56–2.21) | 0.760 | ||
| BMI | 0.95 (0.86–1.05) | 0.342 | ||||
| Calcium | 1.00 (0.93–1.08) | 0.964 | ||||
| Modified Charlson co-morbidity Index | 1.09 (0.93–1.28) | 0.268 | ||||
| HDL cholesterol | 1.00 (0.97–1.03) | 0.887 | ||||
| Triglycerides | 1.00 (1.00–1.01) | 0.822 | ||||
| Total cholesterol | 1.00 (1.00–1.01) | 0.326 | ||||
| Hemoglobin | 0.90 (0.73–1.10) | 0.302 | ||||
| eGFR | 1.03 (0.94–1.13) | 0.504 | ||||
| iPTH | 1.00 (1.00–1.00) | 0.163 | ||||
| Uric acid | 1.02 (0.91–1.14) | 0.794 | ||||
| SBP at the time of dialysis | 1.00 (0.98–1.01) | 0.744 | ||||
a
HR, hazard ratio; CI, confidence interval; BMI, body mass index; HDL, high-density lipoprotein; eGFR, estimated glomerular filtration rate; iPTH, intact parathyroid hormone; SBP, systolic blood pressure.