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Chapter: 1 / Q: 1
While investigating a point source epidemic it was found that 120 students ate five different foods (meat burgers, fried fish, steak, and rice and fruit salad. The relative risk was calculated for all those five foods. It was concluded that fish was not responsible this epidemic. The relative ri
Chapter: 1 / Q: 2
In a prospective study of the relationship between oral contraceptive use and the subsequent risk of developing endometrial cancer, a cohort of 1000 women were followed for 5 years. The results were as follows:
Chapter: 1 / Q: 3
What is the incidence rate (absolute risk) of endometrial cancer among who didn’t use oral contraceptives?
Chapter: 1 / Q: 4
In a prospective study of the relationship between oral contraceptive use and the subsequent risk of developing endometrial cancer, a cohort of 1000 women were followed for 5 years. The results were as follows:
Chapter: 1 / Q: 6
Among 10 women with cervical cancer, medical records confirm a past history of herpes simplex type II infection in eight. What is the relative risk of developing cervical cancer in women with a history of HSV type II infection?
Chapter: 1 / Q: 5
In a prospective study of the relationship between oral contraceptive use and the subsequent risk of developing endometrial cancer, a cohort of 1000 women were followed for 5 years. The results were as follows:
Chapter: 1 / Q: 7
In an outbreak of cholera in a village of 2,000 population, 20 cases have occurred and 5 die Case fatality rate is:
Chapter: 1 / Q: 8
What is the incidence of new cases per 1000 person years in households that had a culture positive case during the first survey?
Chapter: 1 / Q: 9
What is the incidence of new cases per 1000 person years in households that did not have a culture positive case during the first survey?
Chapter: 1 / Q: 10
In a population of 1000, measles coverage is 60%, one child goes out of station and comes back with measles from whom 20 more children get measles. Secondary attack rate of measles is:
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