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拟订疾病的预防策略时,既要考虑危险因素影响的强度,又要考虑人群中暴露于该因素的比例。人群特异危险比分(PARF)是指人群中归因于某暴露因素而发病者占全人群发病者的比例,其考虑了上述两方面的影响,因而是公共卫生与疾病预防中的一个重要指标。PARF 的概念由Levin 于1953年首次提出,又称Levin 氏特异危险度、病因比分、人群相关发病比、以百分比来表示时又称人群特异危险度百分比(PAR%),也有人不加区别地称为特异危险
When formulating a disease prevention strategy, it is necessary to consider both the strength of risk factors and the proportion of people exposed to that factor. The population-specific risk score (PARF) refers to the proportion of people in the population who are attributed to an exposure factor to the total population. It takes into account the above two aspects and is therefore an important indicator in public health and disease prevention. The concept of PARF was first proposed by Levin in 1953. It is also called Levin’s specific risk, etiological score, population-related morbidity ratio, and the percentage of population-specific risk percentage (PAR%). It is also indiscriminately. Specific danger