Posted: February 24th, 2017

Determine exposure status first, and then collect disease status information. 2. Determine disease status first, and then collect exposure history information. 3. Determine disease status and exposure status at the same point in tim

. Are the following examples of incidence or prevalence? Please put your answers under each example. (2 pts each) a. “Rates [of pancreatic cancer] increase rapidly with age as seen in data from the United States, where the rates for patients ages 70–74 are about 57 per 100,000 per year compared to rates of 9.8 per 100,000 in patients age 50–54.” (Lowenfels and Maisonneuve, 2006, p. 200.)

b. “Nearly 5 million asthma sufferers are under age 18. It is the most common chronic childhood disease, affecting more than one child in 20.” (Morbidity and Mortality Weekly Report, NCHS, U.S. CDC, 2003.)

c. Over the past five years, 350 cases of over-worked graduate students have been diagnosed at Drexel University.

8. Match the appropriate sequence of data collection (1-3) with each study design listed below (i.e., for each study design, fill in 1, 2 or 3). (2 pts each)

1. Determine exposure status first, and then collect disease status information. 2. Determine disease status first, and then collect exposure history information. 3. Determine disease status and exposure status at the same point in time.

____ Cross-Sectional Study ____ Cohort Study ____ Case Control Study

9. Match the following strengths to the appropriate study design: (2 pts each) a. Investigation of multiple exposures ____ Case Series b. Investigation of new or emerging diseases ____ Cohort c. Investigator assigns exposure ____ Randomized Clinical Trials d. Ability to calculate incidence rates ____ Case-Control