Lifetime prevalence of each TE and the proportions of all TEs due to each type were calculated both within and across countries. A matrix of tetrachoric correlations among TE types was created and exploratory factor analysis carried out with promax rotation to determine if bivariate associations among TEs clustered into interpretable factors. Time-lagged associations of temporally primary TEs predicting the subsequent first onset of each other TE type were then examined using discrete-time survival analysis with person-year the unit of analysis and a logistic link function (Willett & Singer, 1993). Sociodemographic predictors were also included in those models. Models were pooled across countries.
