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American heart journal · Jun 2010
Multicenter Study Comparative StudyAssociation of insurance status with inpatient treatment for coronary artery disease: findings from the Get With the Guidelines program.
- Mladen I Vidovich, Samip Vasaiwala, Christopher P Cannon, Eric D Peterson, David Dai, Adrian F Hernandez, Gregg C Fonarow, and Get With Guidelines Steering Committee and Investigators.
- University of Illinois at Chicago, Chicago, IL, USA. miv@uic.edu
- Am. Heart J. 2010 Jun 1; 159 (6): 1026-36.
BackgroundPrior studies have documented that patients' health insurance status can impact use of guideline-based care as well as acute outcomes for coronary artery disease. Whether insurance status remains a contemporary influence among centers participating in a national quality improvement initiative is unknown.MethodsWe analyzed data from 237,779 admissions with coronary artery disease from 527 hospitals participating in the Get With The Guidelines-Coronary Artery Disease Program from 2000 to 2008. Insurance status was Medicare (48.8%), Private/Health Maintenance Organization (HMO) (34.9%), Medicaid (8.2%), and No Insurance Documented (NID) (8.2%). Quality of care was measured using standard quality indicators covering acute treatment and discharge measures, utilization of invasive procedures, length of stay, and mortality. Relationship between different insurance types was examined using generalized estimating equation logistic regression and propensity-score matching adjusting for demographics, comorbidities and hospital characteristics.ResultsAfter propensity matching, full compliance with all eligible measures (deficit-free care) relative to Private/HMO was lower for Medicare (P < .0001) and Medicaid (P < .0001) and higher for the NID group (P = .0312). The acute reperfusion times were comparable among the groups. Compared with the Private/HMO group, all three groups had higher generalized estimating equation-adjusted mortality (OR, 1.15; 95% CI, 1.08-1.21; P < .001; OR, 1.18; 95% CI, 1.09-1.29; P < .001 and OR, 1.13; 95% CI, 1.01-1.25; P = .026), for Medicare, Medicaid, and NID, respectively. After propensity matching, mortality for Medicare was similar (P = .1197) and higher for NID (P = .0015) and Medicaid (P = .0015) groups.ConclusionsThese findings suggest that among centers participating in a national quality improvement initiative patient insurance status may be associated with differences in cardiovascular care and outcomes.Copyright 2010 Mosby, Inc. All rights reserved.
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