topic 4

Question 1

What are the four features of the streptomycin tuberculosis trial

Answer 1

1. Its use of randomization
2. The placement of restrictions on the type of patient
3. The data collection methods ensured results wont be biased
4. ethical issues were considered

Question 2

What are two things doll and hills studies accomplished?

Answer 2

1. Redirected focus of research from infectious to chronic disease
2. Chronic diseases were potentially preventable diseases with environmental origins.

Question 2

What new ground did Doll and Hill’s study break?

Answer 2

1. Included tens of thousands of subjects
2. The investigators followed the subjects for a long period of time.
3. incorporated changes in smoking habits over time.

Question 3

What is the framingham study

Answer 3

The framingham study is notable for bringing about a shift in focus from infectious to non infectious diseases following world war II.