The evaluation indesxes are the times of correct and omissive judgements.

有效评是正确判断次数和漏判次数。

Objective To enhance the ability to control the incidence rate and the omissive reporting rate of nosocomial infection in tumor hospital, and analyse the reasons.

了解肿患者院感染病率及漏报率，分析院感染及漏报的原因，以便加强监控。