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Sol / 1- F 2- E 3- H 4- J 5- I 6- D 7- G 8- B 9- A

Q / matching A.ratio B.proportion C.rate D.incidence E.Attack rate F.secondry attack rate G.mortality rates H. case fertality rate I.PYLL J.proportinate mortality Case / A group of 200 students attended a wedding dinner. Two days later, 80 students developed vomiting and diarrhea. Among the 80 sick students, 4 died. During the following week, 20 family members who had close contact with the sick students also developed the same illness. In the same city, 500 deaths occurred this year, and 100 of them were due to heart disease. One man died at age 50, although the standard life expectancy is 75 years Q / according to above multiple choices Which one of the following epidemiological measures is represented by : ( each multiple choice is used only once ) 1- 20 family members who developed illnes after contact with sick students 2- 80 students developed illness after the dinner 3- 4 deaths among 80 sick students 4- 100 of 500 deaths due to heart disease 5- Man died at age 50 instead of 75 6- New cases appearing in healthy population 7- Frequency of deaths in population during time 8- Comparison of part to whole 9- Comparison between two quantities

A ratio is the relative magnitude of two quantities or a comparison of any two values A proportion is the comparison of a part to the whole Rate is a measure of the frequency with which an event occurs in a defined population over a specified period of time Incidence is the rate at which new cases of a condition appear over some specified period in a population previously free of the condition Attack Rate is the cumulative incidence of infection in a group of people observed over a period during an epidemic, usually in relation to food borne disease outbreak. Secondary attack rate: is incidence rate among contacts of primary cases, developing the disease within the incubation period. Mortality rate A mortality rate is a measure of the frequency of occurrence of death in a defined population during a specified interval. Case-Fatality Rate: It indicates what percentage of people diagnosed as having a certain disease die within a specified period of time after disease onset or diagnosis. Proportionate mortality is the proportion of deaths in a specified population during a period of time that are attributable to 𝒔𝒑𝒆𝒄𝒊𝒇𝒊𝒄 𝒄𝒂𝒖𝒔𝒆 Potential Years of Life Lost (PYLL) is an indicator of premature mortality. It represents the total number of years NOT lived by an individual who died before age 75

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Attack rate منو وكم واحد انصاب من المجموعه المُعرضه؟ Prevalence rate شكد عدنا حالات موجوده حالياً؟ Case fatality rates هالمرض شكد خطير؟ وشكد يكتل من المصابين؟

وهذا ملف مال هاي سنتنه حليتهن من ai ان شاء الله صحيحات بعد مادري

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