Incidence rate ratios representing the association between race/ethnicity and the mean number of drinks consumed during a typical occasion across age.
Values were then exponentiated in Excel so that we can interpret the curve as the age-varying incidence rate ratio.
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Authors: Stephanie Lanza and Ashley Linden-Carmichael
Reprinted by permission from Springer Nature: Generalized Time-Varying Effect Models for Binary and Count Outcomes by Stephanie T. Lanza and Ashley N. Linden-Carmichael, 2021.