Patient Safety Curriculum Module 8: Methods for Measuring ...

Health Affairs article, Classen et al.: ‘Global Trigger Tool’ showsthat adverse events in hospitals may be ten times greater thanpreviously measured.• Evaluated incidence of adverse events forpatients at 3 hospitals• Used 3 different approaches:1. IHI Global Trigger Tool: Medical chart review2. Voluntary event reporting system: Staff reporting3. Agency for Healthcare Research and Quality (AHRQ) PatientSafety Indicators: Electronic review of administrative data“We used the following definition for harm:unintended physical injury resulting from or contributed to bymedical care that requires additional monitoring, treatment, orhospitalization, or that results in death.” (p. 583)Classen DC et al. Health Aff. 2011;30(4):581–589.17NPSF Professional Learning Series