figure-image

Figure 3.9a

Title:

Incidence rate ratios representing the association between race/ethnicity and the mean number of drinks consumed during a typical occasion across age.

Syntax:

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Equation:

\ln \left(\lambda_{i}\right)=\beta_{0}(t)+\beta_{1}(t) B L A C K_{i}+\beta_{2}(t) H I S P A N I C_{i}+\beta_{3}(t) O T H E R_{i}

Notes:

Values were then exponentiated in Excel so that we can interpret the curve as the age-varying incidence rate ratio.

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Time-Varying Effect Modeling for the Behavioral, Social, and Health Sciences

Time-Varying Effect Modeling for the Behavioral, Social, and Health Sciences

Authors: Stephanie Lanza and Ashley Linden-Carmichael

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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.