13.5. Analysis of Proportions: Occupational Data
The previous section focused on the analysis of means with weighted least squares. Weighted least squares analysis can be performed for many different types of response functions composed from the proportions in a contingency table. The simplest of these is the response proportions themselves, which are analyzed in this section. In addition, the capability of the CATMOD procedure to fit nested models is demonstrated.
13.5.1. Occupational Data Example
The data displayed in Table 13.6 are from a cross-sectional prevalence study done in 1973 to investigate textile worker complaints about respiratory symptoms experienced while working in the mills (Higgins and Koch 1977). Investigators were interested ...
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