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AHRQ Patient Safety Indicators
- Four patient safety indicators (PSI-5, PSI-6, PSI-7 and PSI-15) are selected as the main measures for patient safety performance in Iowa rural hospitals.
- A composite patient safety indicator variable is the weighted average of each indicator
- The weights are based on the frequency of the numerator of each PSI in our sample (8-year inpatient discharges among 89 Iowa rural hospitals).
- Binary PSIs
- If the value of a PSI is higher than the median of the PSI in our sample, the binary variable for the PSI (poor performance) is equal to one; otherwise, it is equal to zero
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