Work related variables.

<p>O-SD: Overall Standard Deviation, BC-SD: Between cluster standard deviation, WC-SD: Within cluster standard deviation.</p><p>*p-value for the null hypotheses that between cluster is equal to zero.</p><p>**p-value for the null hypotheses that prevalence of measured variable does not vary according to job.</p

Prevalence of mental disorders.

<p>O-SD: Overall Standard Deviation, BC-SD: Between cluster standard deviation, WC-SD: Within cluster standard deviation.</p><p>*p-value for the null hypotheses that between cluster is equal to zero.</p><p>**p-value for the null hypotheses that prevalence of measured variable does not vary according to job</p

Trend of mean scores of total knowledge, socio-demographic and epidemiological knowledge (block I) and clinical knowledge (block II) by year of study at medical school.

<p>ANOVA statistics for (A) “Total score”, p<0.001 (B) “Block I score”, p<0.001 (C) “Block II score”, p<0.001 (D) Separately analysis of block I: “Block I score from 1^st to 4^th year”, p<0.001; “Block I score from 4^th to 7^th year”, p = 0.66.</p