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Table 4 Primary and Secondary outcomes per catheter

From: Occurrence and incidence rate of peripheral intravascular catheter-related phlebitis and complications in critically ill patients: a prospective cohort study (AMOR-VENUS study)

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)
  1. CI confidence interval, CRBSI catheter-related blood stream infection, ICU intensive care unit, IQR interquartile range, PIVC peripheral intravenous catheter
  2. aTime to phlebitis means the duration between insertion of the catheter and detection of phlebitis
  3. bTime to removal means the duration between insertion and removal of the catheter