familial prevalence

例句：

1. 1.The study found that familial prevalenceof diabetes was higher in urban areas.
   研究发现，糖尿病在城市地区的家族发病率更高。
2. 2.The prevalence of obesity among children has beenincreasing in recent years.
   近年来，儿童肥胖的流行率一直在上升。
3. 3. Prevalence isa measure of how often something happens, and it's used to describethe frequency of diseases or conditions.
   流行率是衡量某事物发生频率的一种方式，用于描述疾病或条件的频繁程度。