Association of in-hospital resource utilization with post-acute spending in Medicare beneficiaries hospitalized for acute myocardial infarction: a cross-sectional study

Table 3 Outcomes and post-acute care costs of patients hospitalized with acute myocardial infarction by hospital risk-standardized in-hospital cost levels

Variable	Total	Inpatient Cost Level			p-value
Variable	Total	Low ($13,097-17,648)	Medium ($17,663-19,875)	High ($19,923-31,296)	p-value
Outcomes
In-hospital mortality rate	8.2 (7.9–8.8)	8.2 (7.8–8.7)	8.3 (7.8–8.8)	8.2 (7.8–8.7)	0.90
30-day risk-standardized mortality rate (N = 276)^a, median (IQR)	14.7 (13.7–15.7)	14.9 (13.9–15.7)	14.6 (13.7–15.6)	14.7 (13.6–15.5)	0.42
30-day risk-standardized readmission rate (N = 277)^a, median (IQR)	17.8 (17.1–18.5)	17.5 (16.8–18.4)	17.8 (17.1–18.6)	18.0 (17.5–18.6)	0.03
Hospital risk-standardized post-acute care payment (N = 274) ($), median (IQR)	4964 (4250–5931)	5014 (4295–6051)	4980 (4349–5931)	4922 (4056–5457)	0.21

^aData provided for the number of hospitals (N) that could be linked to Centers for Medicare & Medicaid Services measures. By cost level, for risk-standardized mortality rates, there were 89, 99, and 88 hospitals; for risk-standardized readmission rates, 90, 99, and 88 hospitals; for risk-standardized post-acute care payment, 90, 98, and 86 hospitals
Statistics are percent unless stated otherwise

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