| Retrospective analysis |
- N=1,400,000 - 410,591 prescribers using 734 EHRs
- 7 day follow up (Nov 6, 2016-Nov 12, 2016)
- The sample size was calculated to be representative with a margin of 0.8% error at a confidence level of 99.9%
- Variable: New Rx with cancellation message vs CancelRx |
- Identified 9735 (0.7% of the total) NewRx messages containing prescription cancellation instructions with 78.5% observed in the Notes field; 35.3% of identified NewRxs were associated with high-alert or LASA medications.
- The most prevalent cancellation instruction types were medication strength or dosage changes (39.3%) and alternative therapy replacement orders (39.0%) |
- Wider adoption of CancelRx in the EHR and pharmacy systems can significantly impact patient safety by reducing duplication and inappropriate medications |
Yang Y et al. (2018)
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