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Health Serv Res. 2012 Feb;47(1 Pt 1):188-210. doi: 10.1111/j.1475-6773.2011.01319.x. Epub 2011 Sep 23.

Does decreased access to emergency departments affect patient outcomes? Analysis of acute myocardial infarction population 1996-2005.

Author information

1
Graduate School of Business and Public Policy, Naval Postgraduate School, National Bureau of Economic Research, 555 Dyer Road, Monterey, CA 93943, USA. yshen@nps.edu

Abstract

OBJECTIVE:

We analyze whether decreased emergency department (ED) access results in adverse patient outcomes or changes in the patient health profile for patients with acute myocardial infarction (AMI).

DATA:

We merge Medicare claims, American Hospital Association annual surveys, Medicare hospital cost reports, and location information for 1995-2005.

STUDY DESIGN:

We define four ED access change categories and estimate a ZIP Code fixed-effects regression models on the following AMI outcomes: mortality rates, age, and probability of percutaneous transluminal coronary angioplasty (PTCA) on day of admission.

PRINCIPAL FINDINGS:

We find a small increase in 30-day to 1-year mortality rates among patients in communities that experience a <10-minute increase in driving time. Among patients in communities with >30-minute increases, we find a substantial increase in long-term mortality rates, a shift to younger ages (suggesting that older patients die en route), and a higher probability of immediate PTCA. Most of the adverse effects disappear after the transition years.

CONCLUSIONS:

Deterioration in geographic access to ED affects a small segment of the population, and most adverse effects are transitory. Policy planners can minimize the adverse effects by providing assistance to ensure adequate capacity of remaining EDs, and facilitating the realignment of health care resources during the critical transition periods.

PMID:
22091922
PMCID:
PMC3258371
DOI:
10.1111/j.1475-6773.2011.01319.x
[Indexed for MEDLINE]
Free PMC Article

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