Linear mixed models (LMMs) serve as a versatile statistical framework, combining fixed effects that capture the overall trends with random effects that account for variability across subjects, ...

Introduction The global market for electronic cigarettes (e-cigarettes) has been changing rapidly. There is limited research ...

In the early 1970s, statisticians had difficulty in analysing data where the random variation of the errors did not come from the bell-shaped normal distribution. Besides normality, these traditional ...

Latent class growth analysis will identify distinct pain trajectory classes, and their association with postoperative recovery will be examined. Generalised linear mixed models and least absolute ...