Hypothetical combinations of relative risks rK-ras , rwild and overall relative risk for cancer given the that the odds ratio rK-ras/rwild among cases is 3.7 and PK-ras/Pwild = 1.25
rK-ras
rwild
Overall relative risk
1.0
0.27
0.68
1.25
0.34
0.84
1.50
0.41
1.01
1.75
0.47
1.18
2.0
0.54
1.35
The estimates of the odds ratio (3.7) and PK-ras/Pwild (1.25) are as found by Porta and colleagues.2