Additional file 6: of Identifying subgroups of patients using latent class analysis: should we use a single-stage or a two-stage approach? A methodological study using a cohort of patients with low back pain

Components included in the consensus process to select a preferred model for the single-stage LCA approach. Model summary output from the Latent Class Analysis for all the derived models and for each of these: presentation of included variables, subgroup size, conditional probabilities and means for each subgroup, loadings and profile plots. In addition, a presentation of all profile plots at once, including a brief clinical description of the subgroups and furthermore, a more thorough preliminary description of the preferred model with seven subgroups. (XLSX 828 kb)