“Your
time is limited, so don't waste it living someone else's life. Don't be
trapped by dogma - which is living with the results of other people's
thinking. Don't let the noise of other's opinions drown out your own
inner voice. And most important, have the courage to follow your heart
and intuition. They somehow already know what you truly want to become.
Everything else is secondary.” ~ Steve Jobs
1. While investigating a point source epidemic it was found that 120 students ate five different foods (meat burgers, fried fish, steak, rice and fruit salad). The relative risk was calculated for all those five foods. It was concluded that fish was not responsible for this epidemic. The relative risk of fish is: a. 0.7 b. 1.2 c. 1.7 d. 3.0 e. 7.0 Key: True: a 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: A 245 B 75 C 50 D 630 A + C = 295 B + D = 705 n = 1000 2. What is the incidence rate (absolute risk) of endometrial cancer among who didn’t use oral contraceptives? a. 630 / (50 + 630) b. 75 / (245 + 75) c. 50 / (50 + 630) d. 245 / (245 + 75) e. Insufficient data Key: True: c 50/(50 + 630) In a prospective study of the relationship between oral contraceptive use and the subsequent risk of de...
Comments
Post a Comment
Although every comment is appreciated, due to time limitations I might not be able to respond to every one. Comments are moderated and may take some time to appear. All spam comments will be deleted.