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本文阐述了人群影响指标(PIMs)的定义和应用。PIMs借鉴了需要治疗人数(NNT)的概念,将临床指标扩展到人群,衡量某一个干预措施实施后在人群中的效果或某一危险因素对于人群的危害,为卫生政策的制定提供循证证据。衡量干预措施有效性的人群影响指标有:疾病影响人数、人群影响人数和人群预防人数。衡量危险因素有害性的人群影响指标有:暴露影响人数、暴露病例影响人数、人群影响人数、病例影响人数和消除风险t年后的人群影响人数。
This article describes the definition and application of population impact indicators (PIMs). PIMs draw on the notion of need for treatment (NNT), extend clinical indicators to the population, measure the effect of a given intervention in the population or the risk to a population of a risk factor, and provide evidence-based evidence for the development of health policy . Indicators of population impact on the effectiveness of interventions are: the number of people affected by the disease, the number of people affected by the population, and the number of people being prevented by the population. The impact of risk factors measured by population risk indicators are: the number of exposure, the number of people affected by exposure, the number of people affected by the impact of the number of cases and elimination of the impact of the crowd after t years.