A class of 400 college students who have normal blood glucose level and BMI were

Question

A class of 400 college students who have normal blood glucose level and BMI were enrolled in a cohort study to investigate the association between body weight and development of diabetes. The students were followed for the next 40 years. By the time the data were collected, 300 of those students had the BMI of 25 or higher (overweight or obese) and the rest of 100 had the BMI less than 25. Of the 300 with higher than normal BMI, 210 of them had developed diabetes; of the 100 with normal BMI, 5 of them had developed diabetes. What is the odds of developing diabetes among the people who are overweight or obese?

Explanation / Answer

nUmber of diabetes cases among 300 overweight = 210

Number of non diabetic cases among 300 overweight = 90

Odds of developing diabetes among the people who are overweight or obese = 210:90 or 7:3

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