Additional file 1 of Adolescents’ mental health and maladaptive behaviors before the Covid-19 pandemic and 1-year after: analysis of trajectories over time and associated factors

Additional file 1: Table S1. Descriptive statistics of the mental health index changes in the three groups found by K-means cluter analysis. Table S2. Mean score before pandemic by categories of change (Worsened, Stable, Improved) found by K-means cluster analysis. Figure S1. Dendrogram of the Hierarchical Cluster analysis (Ward’s method) on the four mental health indexes before pandemia (T0).