Table 2.

Association of AKI e-alerts implementation with changes in AKI, mortality associated with AKI and occupied hospital days per patient

Variable		Baseline trend	Level change	Trend change
Results using the Poisson model with number of unique AKI events as outcome
Total AKI episodes	IRR (95% CI)	1.003 (0.999 to 1.006)	0.972 (0.908 to 1.041)	0.996 (0.991 to 1.001)
	P-value	0.118	0.425	0.086
Stages 2–3 AKI episodes	IRR (95% CI)	1.002 (0.999 to 1.006)	1.005 (0.934 to 1.081)	0.995 (0.990 to 1.000)
	P-value	0.188	0.898	0.061
Community-acquired total AKI episodes	IRR (95% CI)	1.001 (0.996 to 1.005)	1.022 (0.931 to 1.122)	0.998 (0.991 to 1.005)
	P-value	0.793	0.645	0.616
Community-acquired Stages 2–3 AKI episodes	IRR (95% CI)	1.002 (0.997 to 1.006)	1.037 (0.945 to 1.138)	0.996 (0.990 to 1.003)
	P-value	0.477	0.450	0.311
Hospital-acquired total AKI episodes	IRR (95% CI)	1.004 (0.999 to 1.009)	0.929 (0.841 to 1.027)	0.994 (0.986 to 1.002)
	P-value	0.113	0.158	0.130
Hospital-acquired Stages 2–3 AKI episodes	IRR (95% CI)	1.004 (0.997 to 1.011)	0.939 (0.815 to 1.082)	0.991 (0.981 to 1.001)
	P-value	0.250	0.389	0.097
Results using Poisson model with number of deaths within 30 and 90 days from AKI detection as outcome
30-day mortality	IRR (95% CI)	1.008 (0.999 to 1.016)	0.878 (0.757 to 1.017)	0.998 (0.987 to 1.009)
	P-value	0.084	0.091	0.688
90-day mortality	IRR (95% CI)	1.006 (1.000 to 1.012)	0.918 (0.828 to 1.018)	0.999 (0.991 to 1.006)
	P-value	0.075	0.111	0.745
Results using the linear model with occupied hospital bed days per month per patient with AKI as outcome
Occupied hospital bed days	Beta (95% CI)	−0.015 (−0.038 to 0.008)	0.774 (0.293 to 1.255)	−0.059 (−0.094 to −0.025)
	P-value	0.200	0.003	0.002