Levy P S, Mullner R, Goldberg J, Gelfand H
Health Serv Res. 1978 Spring;13(1):28-35.
An index of survival rates associated with ICDA injury codes was constructed with data from the 1973 Hospital Discharge Survey (HDS). Discharge records from three regions covered by the HDS allowed estimation of survival rates among patients suffering single injuries coded under 92 ICDA integers. These estimated rates were then applied to records from the fourth HDS region, including those for patients suffering multiple injuries: estimated survival probability index values were generated as the product of the single-condition survival rates for each patient's various injuries. Mortality rates predicted from the index values correlated well with mortality rates estimated for the universe of patients discharged in 1973 from the fourth region. The index is intended for retrospective analysis of discharge records as a possible approach to care evaluation.
利用1973年医院出院调查（HDS）的数据构建了与国际疾病分类法（ICDA）损伤编码相关的生存率指数。HDS覆盖的三个地区的出院记录使得能够估算出92个ICDA整数编码下单一损伤患者的生存率。然后将这些估算率应用于第四个HDS地区的记录，包括多处受伤患者的记录：估算的生存概率指数值是通过将每位患者各种损伤的单病症生存率相乘得出的。根据指数值预测的死亡率与1973年从第四个地区出院的所有患者估算的死亡率高度相关。该指数旨在对出院记录进行回顾性分析，作为护理评估的一种可能方法。
