Input Parameters

Enter counts in the 2×2 contingency table below:

Disease + Disease − Total
Exposed (a) (b) 100
Unexposed (c) (d) 100
Total 40 160 200

Results

Odds Ratio (OR)
Relative Risk (RR)
Chi-Square Statistic
Chi-Square p-value
Fisher's Exact p-value
Reference: Rothman, K.J., Greenland, S. & Lash, T.L. (2008). Modern Epidemiology, 3rd ed.
Disclaimer: This tool is for educational and research planning purposes.