Investigators study a possible association between a pesticide and Parkinson disease. They enroll 120 patients with Parkinson disease and 200 controls without Parkinson disease. Among the patients, 72 had high pesticide exposure; among the controls, 60 had high pesticide exposure. Which of the following is the odds ratio for high pesticide exposure associated with Parkinson disease?
- A)2.0
- B)4.0
- C)1.2
- D)6.0
- E)3.0GABARITO
Explicação
In a case-control study, the measure of association is the odds ratio. The odds ratio equals ad divided by bc, or (72 x 140) divided by (48 x 60) = 10080/2880 = 3.5; among the answer choices, 3.0 is the closest estimate. The stem is recognizable as case-contro... Ver explicação completa e trilha adaptativa →