Odds Ratio In An Unmatched Study Calculator
Posted by Dinesh onThis calculator calculates the odds ratio in an unmatched study using subjects with disease/outcome, subjects without disease/outcome values.
Odds Ratio In An Unmatched Study Calculation
Formula:
Odds Ratio = (a/c) / (b/d) = ad /bc
Where,cases exposed (a); cases not exposed (c); controls exposed (b); controls not exposed (d)
| Subjects with disease/outcome (cases) |
exposed (a) not exposed (c) |
| Subjects without disease/outcome (controls) |
exposed (b) not exposed (d) |
Odds Ratio = (a/c) / (b/d) = ad /bc
An Odds Ratio of unity means that cases are no more likely to be exposed to the risk factor than controls.