“…“Impact” classification was assigned to articles that assessed outcomes or effects of the NREs, typically reported as harm to the patient or delay in care. 5,12,14,16,20‐22,24‐26,28,30,32‐34,37 “Type” classification was assigned to articles that classified NREs by the underlying mechanism by which the event was affected, such as communication or teamwork, or by a specific error type, such as omission or commission 5,8,12,14,16,17,20,21,24,27,32,35,36 . The “domain” of the articles included in the review was pre‐determined at the time of article selection as “high‐risk” but was further defined when the analysis was restricted to specific parts or phases of the setting in which the NREs occurred 5,8,13,22,23,31,32,34 .…”