The Natural Logarithm Transforms the Abbreviated Injury Scale That Improves Accuracy Scoring

Abstract

RESULTSWe found that LISS is more predictive of survival as well (Hangzhou: receiver operating characteristic (ROC): NISS=0.931, LISS=0.949, p=0.006; Similarly, Zhejiang and Shenyang: ROC NISS vs. LISS, p<0.05). Moreover, LISS provides a better fit throughout its entire range of predicting (Hosmer-Lemeshow statistic for Hangzhou NISS=15.76, p=0.027; LISS=13.79, p=0.055; Similarly, for Zhejiang and Shenyang). CONCLUSIONLISS should be used as the standard summary measure of human trauma.

An injury mortality prediction based on the anatomic injury scale

“…[ 5 – 8 ] The new injury severity score (NISS) [ 5 ] overcomes the shortcoming of ISS, but overestimates the mortality of injuries in the same body region (BR), so it cannot completely replace the ISS. [ 9 ] The logarithm injury severity score (LISS) [ 6 ] adopts natural logarithm (ln) to transform AIS and automatically removes the score of 1 or 2 from the AIS, which is better than the NISS and ISS in predicting mortality. However, it is similar to ISS and NISS, which cannot solve the problem that the same value in different BRs does not imply the same mortality rate.…”