An examination of the medical records of more than 229,000 Swedish men showed th

Question

An examination of the medical records of more than 229,000 Swedish men showed that those who were overweight or who had high blood pressure had a higher risk of throat

cancer. Answer parts a) through e) below.

a) Identify whether the above research is an observational study or an experiment.

The described research is an

observational study or experiment

b) Was the study retrospective or prospective?

This is a retrospective or prospective observational study.

c) Identify the subjects studied, and how they were selected.

The subjects were:

1.the medical records of Swedish men

2.Swedish men

3.throat cancer victims

4.men

.How were these subjects selected?

A.The subjects volunteered for the study.

B.The subjects were found by randomly selecting medical records.

C.The subjects were selected to create the sought proportions of obesity, high blood pressure, and throat cancer.

D.The method of selection is not given in the description.

d) Identify the parameter of interest.

A.The parameter of interest is the difference in percentage of men with throat cancer among different groups.

B.The parameter of interest is the difference in percentage of Swedish men with throat cancer.

C.The parameter of interest is the difference in percentage of overweight men among different groups.

D.The parameter of interest is the difference in percentage of men with high blood pressure among different groups.

e) Identify the nature and scope of the conclusion regarding what the results may or may not indicate.

A.There is no random assignment, so a cause-and-effect relationship between weight or high blood pressure and throat cancer cannot be established.

B.The number of medical records examined was very large, so a cause-and-effect relationship between weight or blood pressure and throat cancer is clearly established.

C.There is no random assignment, so a cause-and-effect relationship between weight or high blood pressure and throat cancer is clearly established.

D.Only Swedish men were studied, so a cause-and-effect relationship between weight or high blood pressure and throat cancer cannot be established.

Explanation / Answer

a. observational study

A study based on data that is observed (no manipulation of factors has been employed) ­ valuable for discovering trends and possible relationships.

b. Retrospective

c. Swedish man

The method of selection is not given in the description.

d. The parameter of interest is the difference in percentage of men with throat cancer among different groups.

Hope this will be helpful. Thanks and God Bless You :-)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.