Investigators are interested in the incidence of unprotected sex and HPV infecti
ID: 3130510 • Letter: I
Question
Investigators are interested in the incidence of unprotected sex and HPV infection. Among the 884 college students that were enrolled in a cohort study, 40 acquired HPV infection during their college years; of those, 24 of them had engaged in unprotected sex during college. Of those without HPV infection, 596 had not engaged in unprotected sex in college. What is the relative risk of unprotected sex with the incidence of HPV infection during college? Remember to round to the hundreths place.
Select one:
a. 2.64
b. 4.31
c. 6.19
d. 3.38
Explanation / Answer
Investigators are interested in the incidence of unprotected sex and HPV infection. Among the 884 college students that were enrolled in a cohort study, 40 acquired HPV infection during their college years; of those, 24 of them had engaged in unprotected sex during college. Of those without HPV infection, 596 had not engaged in unprotected sex in college. What is the relative risk of unprotected sex with the incidence of HPV infection during college? Remember to round to the hundreths place.
Select one:
a. 2.64
b. 4.31
c. 6.19
d. 3.38
Unprotected
protected
HPV
24
16
40
No HPV
248
596
844
272
612
884
Risk for unprotected =24/272 =0.0882
Risk for protected =16/612 =0.0261
Relative risk =0.0882/0.0261 = 3.38
Unprotected
protected
HPV
24
16
40
No HPV
248
596
844
272
612
884
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