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14 ** Only answer this question if you have experience in public health / epidem

ID: 12710 • Letter: 1

Question

14 ** Only answer this question if you have experience in public health / epidemiology**

In a prospective cohort of 6,000 students, 500 experienced new cases of carpal tunnel syndrome during exam periods. In a cohort of 5,000 non-students, there were 200 cases of carpal tunnel syndrome during the same period. Imagine you were constructing a 2x2 table for this cohort study associating student activity during exam period with carpal tunnel syndrome. What value would you enter into Cell B of your 2x2 table?

Explanation / Answer

2 x2 table

class    16,000 500 16500

class    5,000 200    5200

                21000    700    21700

class    16500 x21000 /21700 16500 x700 /21700

class 5200 x 21000 /21700 5200 x 700 /21700

                

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