In the present study, we provide descriptive statistics to analyze the study population at baseline. Metric variables are presented by means and standard deviations, nominal variables by categories and proportions. For the comparison between intervention and control group, we used Welch’s t-test, Chi-square test and Fisher’s exact test. For comparison between the hospitals one-way ANOVA was used. The statistical significance level was set to α < 0.05. Not all variables in the baseline assessment could be assessed in all participants. The descriptive statistics provide the respective number of participants for each assessment tool. We used IBM SPSS for the statistical analyses.

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