1-1 matched case-control studies

 

Cases Controls
Exposed Not Exposed
Exposed
Not Exposed

 

 

OR (95% Confidence Interval)=  ...

McNemar's test for no association: ...

p > 0.1 little evidence of an association
0.1 > p > 0.05 weak evidence of an association
0.05 > p > 0.01 moderate evidence of an association
p < 0.01 strong evidence of an association