Table 1.

Characteristics of the sample

	Italy		Romania		Czech Republic		Spain
	n°	%	n°	%	n°	%	n°	%
Gender
Males	843	49.6	498	28.8	149	38.7	210	45.4
Females	723	42.5	1202	69.6	236	61.3	238	51.4
No answer	134	7.9	27	1.6	/	/	15	3.2
Tot.	1700	100	1727	100	385	100	463	100
Age (mean±SD)	22.0±2.4		22.7±2.5		21.5±2.4		22.7±1.5