In a recent case control study on hypertension and the use of Oral Contraceptives (OC) in Queens, NY, a total of 2,700 women were diagnosed with hypertension and 1,200 did not have a history of OC. Of the 700 women without hypertension, 300 did not have a history of OC. What is the odds ratio for the association between OC use and hypertension

≈ 0.94

Explanation:

Number of women diagnosed with Hypertension = 2700

Number without history of OC  = 1200

women with history of OC = 2700 - 1200 = 1500

300 out of 700 of women without hypertension do not have history of OC

400 out of 700 of women without hypertension have history of OC

Determine the odds ratio between OC use and hypertension

Hence :

The odds ratio = ( 1500 / 1200 ) / ( 400/300 )

                         = 1.25 / 1.333 = 0.9377 ≈ 0.94

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

it takes one machine 25 minutes to pick a bale of cotton and another machine 30 minutes to compete the same job. if both machines are used, how long will it take them to pick a bale of cotton?

explanation:

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wyd