Standardized Infection Ratios for Hysterectomy Site Infections 2013

The Standardized Infection Ratio (SIR) is a statistic used to track healthcare associated infections (HAIs) over time, at a national, state, or facility level. The SIR compares the actual number of HAIs at each hospital, to the predicted number of infections. The predicted number is an estimate based on national baseline data, and it is risk adjusted. Risk adjustment takes into account that some hospitals treat sicker patients than others.

标准化感染比（Standardized Infection Ratio，SIR）是一项用于追踪国家、州或设施层面医疗相关感染（Healthcare Associated Infections，HAIs）随时间变化的统计数据。SIR通过比较每家医院实际发生的HAIs数量与预测的感染数量来评估。预测的感染数量是基于国家基线数据的估计，并进行了风险调整。风险调整考虑了某些医院可能治疗病情更严重的患者这一因素。