Subject specific and population average models for binary longitudinal data: a tutorial
Using data from the British Household Panel Survey, we illustrate how longitudinal repeated measures of binary outcomes are analysed using population average and subject specific logistic regression models. We show how the autocorrelation found in longitudinal data is accounted for by both approaches, and why, in contrast to linear models for continuous outcomes, the parameters of population average and subject specific models for binary outcomes are different. To illustrate these points, we fit different models to our data set using both approaches, and compare and contrast the results obtained. Finally, we use our example to provide some guidance on how to choose between the two approaches.
Longitudinal and Life Course Studies
Volume and page numbers
4 , 147 -165
Current 12 months access, plus archive, available through Albert Sloman Library subscription. All years, except current 12 months freely available via website after registration.