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A case-control study was designed to see if body piercing by unlicensed merchants was associated with an increased risk of he

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Answer #1

Matched odds ratio = b/c

From the table

a=96

b=23

c=14

d=87

Matched OR= b/c

i.e 23/14

=1.6428571

Rounding into three decimal places =1.643

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