Consider the following 2 × 2 table from a hypothetical cohort study.Calculate the incidence of cardiovascular disease (CVD) among the not exposed participants. Serum fasting glucose Developed CVD Did not develop CVD Total ≥ 126 m g / d L (exposed) 125 325 450

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Consider the following 2 × 2 table from a hypothetical cohort study.Calculate the incidence of cardiovascular disease (CVD)  among the not exposed participants.    Serum fasting glucose   Developed CVD   Did not develop CVD   Total  ≥ 126 m g / d L  (exposed)   125 325 450 < 126 m g / d L  (not exposed)   50 500 550  Total  175 825 1000 \begin{array} { | l | c | c | c | } \hline 	ext { Serum fasting glucose }  &  	ext { Developed CVD }  &  	ext { Did not develop CVD }  &  	ext { Total } \\hline \geq 126 \mathrm { mg } / \mathrm { dL } 	ext { (exposed)  }  &  125  &  325  &  450 \\hline  <  126 \mathrm { mg } / \mathrm { dL } 	ext { (not exposed)  }  &  50  &  500  &  550 \\hline 	ext { Total }  &  175  &  825  &  1000 \\hline\end{array}  Serum fasting glucose  ≥ 126 mg / dL  (exposed)   < 126 mg / dL  (not exposed)    Total  ​  Developed CVD  125 50 175 ​  Did not develop CVD  325 500 825 ​  Total  450 550 1000 ​ ​ A)  9 per 100 populationB)  28 per 100 populationC)  44 per 100 populationD)  50 per 175 populationE)  72 per 100 population

Jordon Myers · Accepted Answer

Final Answer : A, Explanation :  The incidence of CVD among the not exposed participants is calculated as the number of new cases of CVD divided by the total number of participants in that group. For the not exposed group, this is 50 cases of CVD out of 550 participants, which equals 9.09 per 100 population when expressed per 100 population. This rounds to 9 per 100 population.

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