REGIS NU-713 QUIZ 5 (EPIDEMIOLOGY CHAPTERS 11 &
12) EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Of 2,872 persons who had received radiation treatment in childhood because of an enlarged thymus,
cancer of the thyroid developed in 24 and a benign thyroid tumor developed in 52. A comparison
group consisted of 5,055 children who had received no such treatment (brothers and sisters of the
children who had received radiation treatment). During the follow-up period, none of the comparison
group developed thyroid cancer, but benign thyroid tumors developed in 6. Calculate the relative risk
for benign thyroid tumors:
15.3
In a small pilot study, 12 women with uterine cancer and 12 with no apparent disease were contacted
and asked whether they had ever used estrogen. Each woman with cancer was matched by age, race,
weight, and parity to a woman without disease.
2. What is the estimated relative risk of cancer when analyzing this study as a matched-pairs study?
3.00
Unmatch the pairs. What is the estimated relative risk of cancer when analyzing this study as an
unmatched study design?
4.00
12) EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Of 2,872 persons who had received radiation treatment in childhood because of an enlarged thymus,
cancer of the thyroid developed in 24 and a benign thyroid tumor developed in 52. A comparison
group consisted of 5,055 children who had received no such treatment (brothers and sisters of the
children who had received radiation treatment). During the follow-up period, none of the comparison
group developed thyroid cancer, but benign thyroid tumors developed in 6. Calculate the relative risk
for benign thyroid tumors:
15.3
In a small pilot study, 12 women with uterine cancer and 12 with no apparent disease were contacted
and asked whether they had ever used estrogen. Each woman with cancer was matched by age, race,
weight, and parity to a woman without disease.
2. What is the estimated relative risk of cancer when analyzing this study as a matched-pairs study?
3.00
Unmatch the pairs. What is the estimated relative risk of cancer when analyzing this study as an
unmatched study design?
4.00
