From the summary:
Making Health Care Safer II: An Updated Critical Analysis of the Evidence for Patient Safety Practices (AHRQ Evidence Report No. 211) updates the 2001 report, Making Health Care Safer: A Critical Analysis of Patient Safety Practices (AHRQ Evidence Report No. 43). The 2001 report analyzed the strength of evidence for patient safety practices in use at that time. The 2013 report analyzed a growing body of patient safety research to determine the level of evidence regarding the outcomes, as well as implementation, adoption, and the context in which safety strategies have been used.
After analyzing 41 patient safety practices, an international panel of patient safety experts identified 22 strategies that are ready for adoption. Enough evidence exists that health systems and institutions can move forward in implementing these strategies to improve the safety and quality of health care.