Home
Details
Contact Us
Division of Cancer Prevention/Biometry Research Group
Power Program
Select
What to Calculate
, then enter the remaining Parameter Values. Optionally, select a parameter to
Fast-Forward
, and specify number of and increment per iteration.
Press the Default button to use the original default parameter values, or the Undo button to clear modifications made to current defaults.
Press the Calculate button for results.
6-3. Matched Study with Multiple Controls per Case and Variable Exposures [ref: Miettinen]
What to Calculate:
Fast Forward:
Specify Parameters:
Prevalence of exposure in the controls:
Variance of exposure prevalence for controls:
Exposure parameter in the diseased cases expressed as:
Relative odds (odds ratio)
Relative risk (risk ratio)
Percent increase (as fraction)
Absolute increase
Exposure Prevalence
Exposure Value:
Number of diseased cases:
Number of matched controls for each diseased case
:
Power level:
One-sided alpha level:
none
Fast Forward Options:
# Iterations:
Size of Increment: