5/19/2023 0 Comments Trauma center levels kyIn lesser order of importance, age, SBP, head AIS, mechanism, gender, and abdominal AIS were relevant to adjust for case mix. Specifically, when ISS was taken into consideration, 92% of trauma centers changed their rank by >/=3 and almost half their quartile rank by at least 1. ISS accounted for the most variation in mortality rates across trauma centers, shown by the large rank change with addition of ISS to the model. The variable that affected rankings the greatest was kept and the process was repeated in an iterative fashion until the incremental change in ranks was minimal. We then added variables singly to a risk-adjustment model to obtain adjusted probability of death. Trauma centers were ranked by crude mortality. ![]() One hundred ninety trauma centers contributing data to the National Trauma Databank (NTDB) during 2004 to 2005 were used for hospital rankings (n = 169,929 patients). We set out to identify the patient and injury-related factors that most affect case-mix across centers and thus are most likely to alter assessments of hospital performance. In part, this is due to the perceived need for extensive data required to adequately risk adjust. Few studies have focused on identifying top performers. ![]() Evaluation of trauma center performance has been limited to comparisons of observed versus expected mortality using trauma and injury severity score methodology.
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