Table 4. ED Visits Post-IHPC Enrolment Per 100 Days/Patient and IRR in Medium, Long Versus Short IHPC Duration Group .

IHPC Duration Group and ED Visit Triage Tags	ED Visits Per 100 Days/Patient Post-IHPC Enrolment	IRR	95% CI	P value
White/green ED visits
Short (≤30 days)	6.81	Ref	-	-
Medium (31-90 days)	2.69	0.40	0.38-0.41	<.001
Long (>91 days)	1.12	0.16	0.15-0.17	<.001
Yellow/red ED visits
Short (≤30 days)	6.49	Ref	-	-
Medium (31-90 days)	2.23	0.34	0.30-0.36	<.001
Long (>91 days)	0.80	0.12	0.11-0.14	<.001
Total ED visits
Short (≤30 days)	6.64	Ref	-	-
Medium (31-90 days)	2.45	0.37	0.36-0.38	<.001
Long (>91 days)	0.95	0.14	0.13-0.15	<.001

Abbreviations: IHPC, integrated home palliative care; ED, emergency department; IRR, incidence rate ratio; CI, confidence interval.