Table 8.1 displays the coronary artery disease data that were analyzed in Chapter 3, “Sets of 2 × 2 Tables.” Recall that the study population consists of people who visited a clinic on a walk-in basis and required a catheterization. The response, presence of coronary artery disease (CA), is dichotomous, as are the explanatory variables, sex and ECG. These data were analyzed in Section 3.3.2 with Mantel-Haenszel methods; also, odds ratios and the common odds ratio were computed. Recall that ECG was clearly associated with disease status, adjusted for gender.
|Female||< 0.1 ST segment depression||4||11||15|
|Female||≥0.1 ST segment ...|