TABLE III

For ordered categorical data, values for 6 (z1-(alpha/2)+z1-ß2/log OR)2 for various values of the odds ratio (OR) and power (1-ß) at two sided 5% significance

Power (1-ß)
Odds ratio9995908050
0.751331.97942.09761.77569.03278.50
1.252213.861565.851266.13945.78562.89
1.50670.52474.25383.48286.45140.20
1.75352.00248.96201.31150.3873.60
2229.44162.60131.2298.0247.97
391.3364.6052.2339.0219.10
457.3640.9732.8024.5011.99
542.5630.1024.3418.188.90
1020.7914.7111.898.884.35