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Question 22 0 out c In women with deep venous thrombosis (DVT), a case-control study was conducted to test the association between DVT and past exposure to oral contraceptive (OC) use. Based on the data below, what is the unadjusted odds exposure to OC use among the cases of women with DVT compared to that among the controls without DVT? Oral Yes No Total 67 108 23 152 175 175
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Answer #1

Answer:

Odds ratio for exposure among cases versus controls

=(a*d)/(b*c)

=(67*152)/(23*108)

=4.09984

This indicates that the past exposure to OC cases were about 4 times more likely to be DVT than the controls.

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