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Related Experiment Videos

Assessing the reliability of standardized performance indicators.

Scott C Williams1, Ann Watt, Stephen P Schmaltz

  • 1Division of Research, Joint Commission on Accreditation of Healthcare Organizations, Oakbrook Terrace, IL 60181, USA. swilliams@jcaho.org

International Journal for Quality in Health Care : Journal of the International Society for Quality in Health Care
|January 25, 2006
PubMed
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Self-reported hospital performance indicators show acceptable reliability for assessing clinical care quality. Data quality issues were identified, but overall accuracy supports their use in quality improvement initiatives.

Area of Science:

  • Healthcare Quality Measurement
  • Health Services Research

Background:

  • The Joint Commission on Accreditation of Healthcare Organizations introduced standardized performance indicators in 2002.
  • These indicators are used by approximately 3400 accredited US hospitals for performance assessment.

Purpose of the Study:

  • To evaluate the reliability of self-reported standardized performance indicators.
  • To identify common data quality problems and their causes.
  • To explore strategies for resolving data quality issues.

Main Methods:

  • Independent reabstraction of data from a random sample of 30 hospitals.
  • Comparison of reabstracted data with original data, with adjudication of discrepancies.
  • Structured interviews to investigate reasons for data abstraction errors.

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Main Results:

  • Mean data element agreement rate was 91.9%; mean kappa statistic for binary elements was 0.68.
  • Agreement rates for individual data elements varied widely (62.4%–100%).
  • Mean difference in calculated indicator rates was 4.88%, with a range of 0.0%–13.3%.

Conclusions:

  • The baseline reliability of self-reported performance indicator data is acceptable for assessing and improving hospital performance.
  • Improvements in data accuracy and completeness are possible and desirable.
  • Findings support the continued use of these indicators in healthcare quality initiatives.