Skip to main content

Table 2 Cox proportional hazards model

From: A clinical nomogram for the prediction of early mortality in elderly patients initiating dialysis for end-stage renal disease

 Univariate Cox proportional hazard modelsMultivariate Cox proportional hazard models
β coefficientχ2p valueHazard ratio95% CIβ coefficientχ2p valueHazard ratio95% CI
Age (year)0.0140.4050.5251.0150.970–1.061     
Sex (female)− 0.1320.6280.4280.8760.632–1.214     
Body mass index kg/m2− 0.0200.5600.4540.9810.932–1.032     
Congestive heart failure0.3744.2130.0401.4541.017–2.0780.5919.8520.0021.8061.249–2.613
Cardiovascular disease0.3813.8600.0491.4641.001–2.1400.4675.4060.0201.5941.076–2.363
Peripheral vascular disease0.7954.1360.0422.2141.029–4.7620.7062.9110.0052.0260.900–4.558
Chronic obstructive pulmonary disease0.8786.3340.0122.4061.214–4.7670.8955.9090.0142.4741.200–5.099
Diabetes mellitus0.2810.9970.3181.3250.763–2.299     
Diabetes mellitus with end-organ damage− 0.1793.6360.0570.8360.696–1.005     
Cerebral infarction0.2171.3680.2421.2430.863–1.789     
Dementia0.57710.7480.0011.7811.261–2.514     
Collagen disease0.8593.5380.0602.3600.965–5.775     
Peptic ulcer0.4010.3140.5761.4930.367–6.065     
Hemiplegia0.37812.0520.0011.4601.179–1.8080.72410.8870.0012.0621.324–3.213
Mild liver dysfunction0.1370.0900.7641.1470.468–2.809     
Moderate/severe liver dysfunction0.0680.1590.6901.0700.768–1.491     
Malignant tumor (no metastasis)0.60520.9450.0001.8311.413–2.3720.69121.7020.0001.9951.492–2.668
Metastatic malignant tumor2.0007.5550.0064.3311.450–12.302.0907.5550.0064.6681.556–14.00
Serum albumin g/dl− 0.57118.4300.0000.5650.436–0.733− 0.4539.7930.0020.6340.477–0.843
Hemoglobin g/dl0.0210.1320.7161.0210.913–1.143     
Serum sodium mEq/l− 0.0070.1930.6610.9930.961–1.025     
Serum potassium mEq/l0.0680.8010.3711.0700.923–1.241     
eGFR ml/min/1.73 m20.0598.3630.0041.0611.019–1.104     
Serum chloride mEq/l− 0.0244.1480.0420.9770.955–0.999     
Corrected serum calcium mg/dl0.38712.2900.0001.4731.186–1.829     
Blood urea nitrogen mg/dl0.0054.9060.0271.0051.001–1.010     
Serum phosphorus mg/dl0.0892.4770.1151.0930.978–1.221     
Total cholesterol mg/dl− 0.0032.7830.0950.9970.994–1.001     
C-reactive protein mg/dl0.06029.3350.0001.0621.039–1.085     
Emergency initiation0.2677.0780.0081.3061.073–1.591     
Initiation by catheter0.53010.1760.0011.6981.227–2.352     
Karnofsky Performance Status− 0.02338.3730.0000.9770.970–0.984− 0.01821.8220.0000.9810.973–0.989
Fracture within 12 months0.7909.6390.0022.2031.338–3.6280.6176.4400.0111.8531.111–3.089