Nineteen percent of the patients had suffered a tear in an artery, most often in the carotid (neck) artery, and 17 percent had suffered an aneurysm (a bulge in an artery), most often in the renal (kidney) artery, the study authors reported in a symposium news release.
and analyzed with no less care than studies intended to examine risk-fac-tor associations with cancer. If proper care is not taken, descriptive studies will divert scientific resources, especially public health department resources, away from more productive activities. Descriptive epidemiology studies can also be used to evaluate cancer
1 Distinguish between definitions of epidemiology and clinical epidemiology. 2  Apply the terminology of the Epidemiologic Triad to an infectious disease. 3  Use the Epidemiologic Triad to identify modifications that will affect the frequency of disease in a population.  State five objectives of epidemiologic research.