Morbidity - Morbidity

Japanese: 罹病率 - りびょうりつ（英語表記）morbidity

Also called morbidity rate. The ratio of the number of infected people to a specific population within a certain period of time. Usually, it is expressed as morbidity rate (annual) = (number of notified cases in a year/midyear population) x 100,000 per 100,000 population per year. For example, the number of notified dysentery cases in 1992 was 1,124, and the morbidity rate per 100,000 population is 0.9. There are also specific morbidity rates that incorporate gender, age, and other special conditions.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

罹患率ともいう。一定期間内における罹患者数の特定人口に対する割合。普通は年間，人口 10万対をとり罹病率 (年間) ＝ (1年間の届出患者数/年央人口) × 100000で表わす。たとえば 1992年の赤痢届出患者数は 1124人であり，人口 10万対罹病率は 0.9である。性別，年齢別その他特別条件を組入れた特殊罹病率もある。

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