Odds Ratio Calculator
Calculate the Odds Ratio from a 2x2 contingency table.
Formula:
Odds Ratio (OR) = (A / B) ÷ (C / D) = (A × D) / (B × C)
This measures the odds of an event occurring in the exposed group versus the unexposed group.
Calculate the Odds Ratio from a 2x2 contingency table.
Odds Ratio (OR) = (A / B) ÷ (C / D) = (A × D) / (B × C)
This measures the odds of an event occurring in the exposed group versus the unexposed group.
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