The Australian and New Zealand journal of surgery
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TRISS methodology is a statistical technique by which the probability of survival in injury can be estimated. It combines an anatomical index of injury severity (the injury severity score, ISS), a physiological index (the revised trauma score, RTS), age and the mechanism of injury. In this study TRISS was used to assess 198 patients with penetrating injury at Baragwanath Hospital. ⋯ The respective probabilities of survival for these four patients, as derived by TRISS, were 0%, 0%, 6% and 46%. TRISS demonstrated that the outcome of the patients as a group was comparable to other centres. TRISS is a useful method for monitoring the effectiveness of a trauma unit and objectively identifying cases for peer review.