Table 2. IRR of ED Visits Pre- and Post-IHPC Enrolment by IHPC Duration Groups and by Triage Tag .

IHPC Duration Group	ED Visits Per 100 Days/Patient Pre-IHPC Enrolment	ED Visits Per 100 Days/Patient Post-IHPC Enrolment	IRR	95% CI	P Value
Short (≤30 days)	1.55	6.64	4.35	4.17-4.55	<.001
White/green ED visit	1.88	6.81	3.57	3.58-3.70	<.001
Yellow/red ED visit	1.28	6.49	5.00	5.00-5.70	<.001
Medium (31-90 days)	1.52	2.45	1.61	1.56-1.67	<.001
White/green ED visit	1.82	2.69	1.47	1.43-1.52	<.001
Yellow/red ED visit	1.26	2.23	1.75	1.67-1.89	<.001
Long (>90 days)	1.47	0.95	0.65	0.61-0.68	<.001
White/green ED visit	1.78	1.12	0.63	0.60-0.66	<.001
Yellow/red ED visit	1.21	0.80	0.67	0.60-0.74	<.001

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

Triage tags are colour codes: white defines non-critically ill patients who do not require treatment in a short time; green defines borderline critically ill patients, whose intervention can be postponed; yellow defines medium critically ill patients, whose intervention cannot be postponed; and red defines highly critically ill patients that need immediate emergency intervention. White/Green = low level of emergency; Yellow/Red = medium-to-high level of emergency.