Anemia, costs and mortality in Chronic Obstructive Pulmonary Disease

Table 4 Resource Utilization After Index Date

	COPD with Anemia (n = 27,932)		Non-anemic COPD (n = 104,492)		P value
Type of Resource Utilization	Total Number*	Annual Rate	Total Number*	Annual Rate
Outpatient Visits	151,930	3.76	678,416	3.12	<0.001
Emergency Department Visits	19,878	0.49	74,951	0.34	0.038
Hospitalizations	36,970	0.91	106,230	0.49	0.036
ICU Admissions	9,062	0.22	25,469	0.12	<0.001
Ventilation Episodes	2,270	0.06	6,188	0.03	<0.001
Home Health Care Visits	1,374	0.03	4,302	0.02	<0.001
Nursing Home Admissions	4,342	0.11	10,298	0.05	<0.001
Medication Prescriptions (non-self-administered)	26,689	0.66	89,361	0.41	0.334
Transfusions	6,348	0.16	6,394	0.03	<0.001

*From Index Date to end of data, end of 12 month study period, or end of Medicare enrollment
Abbreviations: COPD – Chronic obstructive pulmonary disease, ICU – intensive care unit