Summary of findings 14. Feedback on prescribing errors versus education on prescribing errors.

Feedback on prescribing errors versus education for reducing medication errors in adults in hospital settings
Patient or population: adults Setting: hospitals Intervention: feedback on prescribing errors Comparison: education
Outcomes#	Relative effect (95% CI)	Absolute effect (95% CI)	№ of participants (studies)	Certainty of the evidence (GRADE)	Comments
Medication errors (Follow‐up 1 to 4 months)	OR 0.59 (0.20 to 1.76)	Not estimable	Not available (2 RCTs)	⊕⊝⊝⊝ Very lowa,b,c	Grouped outcomes. The unit of analysis was prescriptions. Analysis 14.1
CI: confidence interval; OR: odds ratio
GRADE Working Group grades of evidence High certainty: we are very confident that the true effect lies close to that of the estimate of the effect. Moderate certainty: we are moderately confident in the effect estimate. The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different. Low certainty: our confidence in the effect estimate is limited. The true effect may be substantially different from the estimate of the effect. Very low certainty: we have very little confidence in the effect estimate. The true effect is likely to be substantially different from the estimate of effect.

^#There were no data available for adverse drug events, mortality, readmissions, length of stay, quality of life and discrepancy resolution.
^aDowngraded one level due to risk of bias.
^bDowngraded two levels due to the high level of inconsistency amongst studies.
^cDowngraded one level due to imprecision.