A Classification Statistic for GEE Categorical Response Models

10.6339/JDS.2003.01(2).106

John M. Williamson；Hung-Mo Lin；Huiman X. Barnhart

Cumulative logistic regression ； kappa statistic ； logistic regression ； ordinal response

Journal of Data Science

1卷2期（2003 / 05 / 01）

149 - 165

英文

A kappa-like classification statistic is proposed for assessing the fit of GEE regression models with a categorical response. The proposed statistic is a summary measure depicting how well categorical responses are predicted from the fitted GEE model. The statistic takes on a value of 1 if prediction is perfect and a value of 0 if the fitted model fares no better than random chance, i.e., fitting the repeated categorical responses with an intercept-only model. To demonstrate the usefulness of the classification statistic, we present simulation results as well as two examples from biomedical studies.

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