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Health Serv Res. 2012 Apr;47(2):756-69. doi: 10.1111/j.1475-6773.2011.01310.x. Epub 2011 Aug 30.

Relationship between patient safety and hospital surgical volume.

Author information

  • 1Department of Surgery, Stanford University School of Medicine, Palo Alto, CA 94306, USA. boussard@stanford.edu

Abstract

OBJECTIVE:

To examine the relationship between hospital volume and in-hospital adverse events.

DATA SOURCES:

Patient safety indicator (PSI) was used to identify hospital-acquired adverse events in the Nationwide Inpatient Sample database in abdominal aortic aneurysm, coronary artery bypass graft, and Roux-en-Y gastric bypass from 2005 to 2008.

STUDY DESIGN:

In this observational study, volume thresholds were defined by mean year-specific terciles. PSI risk-adjusted rates were analyzed by volume tercile for each procedure.

PRINCIPAL FINDINGS:

Overall, hospital volume was inversely related to preventable adverse events. High-volume hospitals had significantly lower risk-adjusted PSI rates compared to lower volume hospitals (p < .05).

CONCLUSION:

These data support the relationship between hospital volume and quality health care delivery in select surgical cases. This study highlights differences between hospital volume and risk-adjusted PSI rates for three common surgical procedures and highlights areas of focus for future studies to identify pathways to reduce hospital-acquired events.

© Health Research and Educational Trust.

PMID:
22091561
[PubMed - indexed for MEDLINE]
PMCID:
PMC3419887
Free PMC Article
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