Table 4.

Univariate cox regression analysis for all-cause mortality

HR (95% CI)P
OL-HDF (reference: hemodialysis group)0.70 (0.53–0.92)0.01
Age (per 1-yr increment)1.05 (1.03–1.06)<0.001
Sex (reference: female)1.43 (1.05–1.94)0.02
Diabetes (reference: absence of diabetes)1.43 (1.07–1.91)0.02
Charlson comorbidity index (per 1-unit increment)a1.37 (1.28–1.47)<0.001
Vascular access (reference: fistula)1.45 (1.20–1.76)<0.001
  • a The Charlson comorbidity index was calculated excluding diabetes.