Table 3.
Multivariable analysis of predictors of catheter malfunction
| 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 |
*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.