Table 3.

Trial outcomes. Rates are shown per 1000 catheter days

Outcomes	Raw event rate during baseline	Poisson mode event rate* during baseline (IQR)	Raw event rate during intervention	Poisson model event rate during intervention (IQR)	Incidence rate ratio (95% CI)	P value
Primary outcome:
Confirmed haemodialysis CRBSI	0.32	0.21 (0.15-0.29)	0.24	0.29 (0.21-0.39)	1.37 (0.85 to 2.21)	0.20
Secondary outcomes:
Suspected or possible CRBSI	0.13	0.12 (0.07-0.20)	0.13	0.06 (0.03-0.11)	0.52 (0.26 to 1.03)	0.06
Total CRBSI (confirmed, suspected, and possible)	0.44	0.36 (0.26-0.48)	0.37	0.35 (0.26-0.48)	0.99 (0.67 to 1.47)	0.97
All haemodialysis CVC related infectious events	0.64	0.55 (0.41-0.74)	0.50	0.40 (0.29-0.54)	0.72 (0.52 to 1.01)	0.06

CRBSI=catheter related bloodstream infection; CI=confidence interval; CVC=central venous catheter; IQR=interquartile range.

^*Multilevel Poisson regression model included a random intercept at service level, a fixed effect covariate for study time periods, and an offset for log person times accumulated in specific service and time periods.

^†Includes exit site and tunnel infections.