An Evaluation of Multiple Trauma Severity Indices Created by Different Index Development Strategies

摘要: Evaluation of the effectiveness emergency trauma care systems is complicated by need to adjust for widely variable case mix found in patient populations. Several strategies have been advanced construct severity indices that can control these population differences. This article describes a validity and reliability comparison developed under three different approaches: 1) use multi-attribute utility (MAU) model; 2) an actuarial approach relying on empirical data bases; 3) "ad hoc" approach. Seven criteria were identified serve as standards four indices. The study's findings indicate index using MAU theory associates most closely with physician judgments severity. When correlated morbidity outcome measure, MAU-based shows higher levels agreement than other development based principles has several advantages it appears be powerful tool creation effective