RT Journal Article SR Electronic A1 Spacilova, Lenka A1 Klusonova, Hana A1 Petrelli, Fabio A1 Signorelli, Carlo A1 Visnovsky, Peter A1 Grappasonni, Iolanda T1 SUBSTANCE USE AND KNOWLEDGE AMONG ITALIAN HIGH SCHOOL STUDENTS JF Biomedical papers YR 2009 VO 153 IS 2 SP 163 OP 168 DO 10.5507/bp.2009.028 UL https://biomed.papers.upol.cz/artkey/bio-200902-0013.php AB Aims: This study was aimed for evaluation of Italian students' attitudes to addictive substances, their knowledge and personal experience, and their awareness about the risks. Methods: The research was realized among high school students from Marche region in the Central Italy in the year 2006; the study group was randomly chosen from all schools in the region. 4118 appropriately completed questionnaires returned. The statistic processing was carried out by using chi-square test for two qualitative variables.