Table 4.
Primary and Secondary outcomes per catheter
| Primary outcome | ||
| Phlebitis per catheter | Number of catheters/total PIVCs | 535/7118 |
| Proportion, % (95% CI) | 7.5 (6.9–8.2) | |
| Time to phlebitisa, median (IQR), hours | 36.3 (17.8–58.6) | |
| Incidence rate per 100 intravenous catheter-days (95% CI) | 3.3 (3.0–3.6) | |
| Secondary outcomes | ||
| CRBSI | Number of catheters/total PIVCs | 3/7025 |
| Proportion, % (95% CI) | 0.04 (0.02–0.13) | |
| Time to removalb, median (IQR), hours | 481.5 (12.8–558.3) | |
| Incidence rate per 1000 intravenous catheter-days (95% CI) | 0.18 (0–0.39) | |
| Catheter failure | Number of catheters/total PIVCs | 1492/7118 |
| Proportion, % (95% CI) | 21.0 (20.0–21.9) | |
| Time to removalb, median (IQR), hours | 48.3 (23.3–81.9) | |
| Incidence rate per 100 intravenous catheter-days (95% CI) | 9.1 (8.7–10.0) | |
CI confidence interval, CRBSI catheter-related blood stream infection, ICU intensive care unit, IQR interquartile range, PIVC peripheral intravenous catheter
aTime to phlebitis means the duration between insertion of the catheter and detection of phlebitis
bTime to removal means the duration between insertion and removal of the catheter