[答]百分比和百分率虽然都是卫生统计上常用的相对数,都用“%”来表示,都读作百分之几,但两者含义不同,计算方法不同。因此,两者既不能混淆,也不能互相对比。首先,两者的含义不同。“率”是表示频率的指标的,即表示某种现象在一定条件下实际发生例数 [A] Percentages and percentages are all commonly used relative statistics in health statistics. They are expressed as “% ” and read as percentages, but the meanings of the two are different and the calculation methods are different. Therefore, the two can not be confused, nor can they be compared with each other. First of all, the meaning of the two is different. “Rate ” is an indicator of frequency, which means that under certain conditions, the actual number of cases