Categorical Data Analysis Using SAS, Third Edition, 3rd Edition

Chapter 3

Sets of 2 × 2 Tables

Contents

3.1   Introduction

3.2   Mantel-Haenszel Test

3.2.1   Respiratory Data Example

3.2.2   Health Policy Data

3.2.3   Soft Drink Example

3.3   Measures of Association

3.3.1   Homogeneity of Odds Ratios

3.3.2   Coronary Artery Disease Data Example

3.4   Exact Confidence Intervals for the Common Odds Ratio

3.1 Introduction

The respiratory data displayed in Table 2.8 in the previous chapter are only a subset of the data collected in the clinical trial. The study included patients at two medical centers and produced the complete data shown in Table 3.1. These data comprise a set of two 2 × 2 tables.

Table 3.1 Respiratory Improvement

Investigators were interested in whether there were overall differences in ...