Analytic Epidemiology – Q/A (Question and Answer)

Answer:

test hypotheses generated by descriptive epidemiology; key feature is a comparison group (control group). When persons with a particular characteristic are more likely than those without the characteristic to contract a disease, the characteristic is said to be associated with the disease. The characteristic may be a: demographic factor (age, race, sex), constitutional factor (blood group or immune status), behavior or act, or circumstance (where one lives).