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Table 3 Multivariable analysis of predictors of catheter malfunction

From: Risk factors associated with hemodialysis central venous catheter malfunction; a retrospective analysis of a randomized controlled trial

Predictor variable Adjusted* HR (95% CI)
Mean blood processed in the prior 6 runs (L)  
 < 65 4.36 (1.59-11.95)
 65 - 74 2.65 (0.98-7.12)
 75 - 84 1.31 (0.44-3.95)
 85+ Reference
Mean blood flow in the prior 6 runs (mL/min)  
 < 300 7.65 (2.78-21.01)
 300 - 324 5.52 (2.00-15.23)
 325 - 349 2.37 (0.76-7.45)
 350+ Reference
  1. *Adjusted for age (years), gender, treatment allocation, first dialysis catheter ever, diabetes, history of rt-PA use with prior CVC, CVC reversed in prior run, CVC reversed at least once in the prior 6 runs, and number of runs with CVC reversed in the prior 6 runs.