ERA-EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Nephron Clin Pract. 2010;115(1):c17-20. doi: 10.1159/000286345. Epub 2010 Feb 19.
To describe how often a disease or another health event occurs in a population, different measures of disease frequency can be used. The prevalence reflects the number of existing cases of a disease. In contrast to the prevalence, the incidence reflects the number of new cases of disease and can be reported as a risk or as an incidence rate. Prevalence and incidence are used for different purposes and to answer different research questions. In this article, we discuss the different measures of disease frequency and we explain when to apply which measure.
为了描述在人群中某种疾病或其他健康事件发生的频率，可以使用不同的疾病频率衡量标准。患病率反映了现有疾病病例的数量。与患病率不同的是，发病率反映了新发病例的数量，可以报告为风险或发病率。患病率和发病率用于不同的目的，并回答不同的研究问题。在本文中，我们将讨论不同的疾病频率衡量标准，并解释何时应用哪种衡量标准。
