Table 3.
Number of catheter dysfunction events, catheter days of exposure, and crude incidence of catheter dysfunction during the baseline and intervention phase, and the effect of the intervention on the service-wide incidence rate of catheter dysfunction adjusted for calendar time using 2-level Poisson regression with a random effect for service
| Baseline phase |
Intervention phase |
Effect of the intervention |
||||||
|---|---|---|---|---|---|---|---|---|
| Events, n | Catheter days | Incidence (95% CI)a | Events, n | Catheter days | Incidence (95% CI)a | Adjusted IRR | 95% CI | P-value |
| 438 | 481,863 | 0.91 (0.82–0.99) | 435 | 638,522 | 0.68 (0.62–0.75) | 0.67 | 0.50–0.89 | 0.006 |
CI, confidence interval; IRR, incidence rate ratio.
a
per 1000 catheter days.