August 2009
Intermediate to advanced
648 pages
17h 35m
English
book
Categorical Data Analysis Using The SAS® System, 2nd Edition
by Maura E. Stokes, Charles S. Davis, Gary G. Koch
Content preview from Categorical Data Analysis Using The SAS® System, 2nd Edition
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8.2. Dichotomous Explanatory Variables
8.2.1. Logistic Model
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.
| Sex | ECG | Disease | No Disease | Total |
|---|---|---|---|---|
| Female | < 0.1 ST segment depression | 4 | 11 | 15 |
| Female | ≥0.1 ST segment ... |
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