Basic Analysis and Graphing - SAS

Chapter 6 Performing Contingency Analysis 209
Additional Examples of the Contingency Platform
Figure 6.17 The Choose Relative Risk Categories Window
Note the following about the Choose Relative Risk Categories window:
• If you are interested in only a single response and factor combination, you can select that here. For
example, if you clicked OK in the window in Figure 6.17, the calculation would be as follows:
PY ( = Married X = Female)
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PY ( = Married X = Male)
• If you would like to calculate the risk ratios for all ( 2×
2=4) combinations of response and factor levels,
select the Calculate All Combinations check box. See Figure 6.18.
7. Ask for all combinations by selecting the Calculate All Combinations check box. Leave all other default
selections as is.
Figure 6.18 Example of the Risk Ratio Report
To see how the relative risk is calculated, proceed as follows:
1. Examine the first entry in the Relative Risk report, which is P(Married|Female)/P(Married|Male).