1. The Physicians' Health Study was what kind of study:
A. Cohort
B. Intervention
C. Community trial
D. Case-control
2. An epidemiologist investigating an outbreak of encephalitis in New York City reports that there have been 17 new cases this week. Which of the following terms best describes the number he reports?
A. Population at risk of encephalitis
B. Incidence of encephalitis
C. Determinants of encephalitis
D. Prevalence of encephalitis
3. Which of the following statements is not true of the Framingham Heart Study:
A. It found that it is normal and healthy for blood pressure to rise with age.
B. It found that high blood pressure is associated with weight gain.
C. It found that smokers' risks of heart disease drops to normal after they quit
D. Publicity about its findings helped to change people's health-related behavior.