Trauma Scoring systems

Numerous trauma scoring systems have been developed over the last forty years to describe injury severity and predict the probability of survival and, to a lesser extent, the degree of residual impairment that may result from such injuries. The important features of trauma scoring systems are utility (how useful is the scroing system?), validity (does the scoring system measure what it purports to measure?), reliability (is the information collected reproducible under identical circumstances?) and discriminating capacity (how sensitive is the scoring system at detecting differences?).