Working Correlation Matrix

Figure 1. Working correlation matrix
Working correlation matrix

This table reports the estimated correlations for within-subject measurements. Having an Unstructured correlation matrix means that each of the 6 unique cells of the matrix can have different values. Here there is a fair amount of correlation between measurements, ranging from 0.309 between the first and third measurements to 0.441 between the second and third measurements.

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Parent topic: Using Generalized Estimating Equations to Fit a Repeated Measures Logistic Regression