Question

39. studies are usually executed when the knowledge level is relatively high in regards to the relationship of the exposure and disease being studied. a. Case-control b. Cohort 40. In using the study design, the epidemiologist divides study participants on whether or not they have a certain exposure and then waits to see if a certain disease/injury eventually occurs. a. case-control b. cohort 41. In a randomized clinical trial "this" has got to be a part of the study protocol. a. the subjects do not know which group they are in b. the data collectors do not know which group the subjects are in c. participants have an equal opportunity to be assigned to a treatment or control group 42. Which of the following statements describes the major advantages of randomized clinical trials? a. it avoids observer bias b. it yields results that are replicable in other patients c. it is easy to justify d. it enrolls representative patients e. it rules out self-selection of participants to the different treatment groups 43. In order to assess how strongly related an exposure is to a disease, which would be the best health statistic? a. incidence of the disease b. attributable risk c. prevalence of the exposured. relative risk 44. The following statement articulates the results of what type of epidemiologic statistic? "95% of lung cancer among study participants can be ascribed to smoking." a. attributable risk b. attributable risk percent c. relative risk d. population attributable risk e. population attributable risk percent f. odds ratio 45. The following statement articulates the results of what type of epidemiologic statistic? “5 cases of lung cancer for every 100 people in our study can be ascribed to smoking." a. attributable risk b. attributable risk percent c. relative risk d. population attributable risk e. population attributable risk percent f. odds ratio 46. True / False Random assignment to groups in an experiment should eliminate the likelihood of selection bias. 47. True False Ideally in an experiment the researchers should be blinded to exposure status of the participants. 48. In a cohort study done to investigate the relationship of smoking and subsequently developing lung cancer, your exposure is _ a. smoking b. lung cancer apidemiology.

Answer 1

Ans 39: The cohort study is type of epidemiological study where identification of individuals based on exposure and causes, risk of disease and health outcomes

The case-control study is a type of observational study where two groups are identified which differs in health outcome and these groups are compared on the basis of disease cause.

Hence, the blank can be filled with Cohort