Table 3.
Repeated measures analysis* of medical services associated with catheter dysfunction.
| Type of medical service | Odds ratio** | 95% confidence interval | P-value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Missed session due to access problems | 2.50 | 2.10 | 2.97 | <0.001 |
| Access procedure | ||||
| Limited definition*** | 2.10 | 1.97 | 2.25 | <0.001 |
| Expanded definition**** | 1.17 | 1.10 | 1.25 | <0.001 |
| Missed session or access procedure | 2.21 | 2.11 | 2.33 | <0.001 |
| Hospitalization (any diagnosis) | 1.10 | 1.04 | 1.17 | 0.001 |
*Multivariate analyses included age, gender, race, underlying cause of renal failure, dialysis vintage, ESRD Network, Charlson Comorbidity Index, and whether the patient was incident to catheter dialysis, as co-variables.
**Odds of medical service before the next dialysis session among those with versus without catheter dysfunction in the preceding session.
***Consists of injection for catheter evaluation with fluoroscopy (36598); thrombolytic de-clotting of catheter (36593); mechanical removal of clot (36596); mechanical removal of intraluminal (intracatheter) obstructive material (75902); injection of “TPA” (J2997).
****Consists of those procedures included in the limited definition, plus tunneled catheter exchange or replacement (36581), and the combination of removal of tunneled catheter (36589) plus tunneled catheter insertion (36558).