A cohort study of benzene exposure and cancer was conducted in a tire manufacturing company:________
a) There were a total of 1,250 people working for the company.
b) 540 of the employees were exposed to benzene as a part of their daily job duties.
c) 710 employees were not exposed to benzene during their job duties.
d) 52 of the employees exposed to benzene developed cancer
e) 16 of the employees not exposed to benzene developed cancer.

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Histrionicus Histrionicus · Answer 1 · 2021-04-27T08:29:10+02:00

In the given question these are not options but the numbers of individuals affected or present in the study, the main question is:

calculate and interpret the relative risk for this study?

Answer:

The correct answer is - 4.27.

Explanation:

Given:

The total population is = 1250

Diseased. Healthy

Exposed 52...(a) 488...(b)

Not exposed. 16...(c) 694...(d)

solution:

Incidence among exposed / Incidence among non-exposed.

=> [tex]\frac{a}{a+b}[/tex]÷[tex]\frac{c}{c+d}[/tex]

=> 52/540÷16/710

=> 52×710÷16× 540

=> = 4.27

Thus, the Relative risk is = 4.27