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Table 2 Adjusted hazard ratios for all-cause mortality according to categorized single-pool Kt/V (spKt/V) among 18,242 hemodialysis patients

From: The association of dialysis adequacy, body mass index, and mortality among hemodialysis patients

spKt/V Model 1 Model 2 Model 3
HRs 95% CI HRs 95% CI HRs 95% CI
< 1.0 1.3 1.16–1.45 1.33 1.19–1.49 1.17 1.05–131
1.0 to < 1.2 1.05 0.96–1.15 1.09 1.00–1.19 1.03 0.94–1.13
1.2 to < 1.4 Reference Reference Reference
1.4 to < 1.6 0.92 0.85–1.00 0.93 0.86–1.01 0.95 0.87–1.02
1.6 to < 1.8 0.85 0.78–0.94 0.86 0.78–0.95 0.89 0.81–0.98
≥1.8 0.85 0.76–0.94 0.86 0.77–0.96 0.88 0.79–0.99
  1. Model 1: Adjusted for only baseline spKt/V
  2. Model 2: Adjusted for covariates of model 1 and age, sex, dialysis vintage, end-stage renal disease reason (diabetes, hypertension, glomerulonephritis, or others), and comorbidities (diabetes, hypertension, and cardiovascular disease)
  3. Model 3: Adjusted for covariates of model 2 and session time, systolic blood pressure, diastolic blood pressure, presence of residual kidney function (renal urea clearance ≥1 mL/min), hemoglobin, and normalized protein catabolic rate