Then a latent variable path model compared baseline variables to those collected at 18 months. (journals.plos.org)
The internal validity of this trial is high, with excellent balance between groups on baseline variables, high medication and therapy adherence, complete 16 - week drinking data for 94 % of the sample, and biological verification of self - report. (jamanetwork.com)
Several analyses focused on missing data.36 To explore missing data patterns, we coded loss to follow - up as a binary variable and tested baseline variables as predictors using a stepwise logistic regression. (jamanetwork.com)