发病率(incidence)和流行率(prevalence)如何定义,以及两者有什么区别? - 知乎 prevalence描述的是多少,是一种静态的状态;Incidence描述的是快慢,描述的是变化。 我做一个近似的比喻。患病的人数是绝对多少 a 就像是一个点的位置,但这种绝对位置是没办法描述出来的,需要一个参考坐标来帮着定位,这时候给一个人群总数 N 就像是给了个坐标系,那么prevalence = a N 就是坐标
point prevalence和1-year prevalence区别? - 知乎 The most common form of prevalence reported across the 11 disorders was the 1-year prevalence The 1-year prevalence is a hybrid type of prevalence between lifetime prevalence and point prevalence, recording the history of the disorder within a year prior to assessment (12) It differs from lifetime prevalence in focusing on only 1 year