“…We identified 103 terms used to identify or describe QIs in our review. Although the field of quality improvement is fundamentally a process of change Peer review of trauma deaths to evaluate quality of care and determine whether the death was potentially preventable 19 Case series 13,19,34,39,50,69,76,79,85,87,99,115,[119][120][121]124,188,189,200 ; 18 cohort studies 10,18,37,49,62,86,109,113,122,140,145,149,151,178,187,194,196,207 ; 3 before-and-after case series 51,118,166 ; 2 nonrandomized controlled trials 16,205 ; and 1 cross-sectional study 17 Hospital mortality a 17 Cohort studies 7,43,49,52,63,…”