ABSTRACT

The sample was composed of 519 subjects. The breakdown of the sample by socio-demographic variables was as follows: gender, 264 males (50.9%), 255 females (49.1); age, 93 SS between 14 and 18 years of age (17.9%), 137 SS between 19 and 30 years of age (26.4%), 111 SS between 31 and 45 years of age (21.4%) and 178 SS between 46 and 80 years of age (34.3%); educational level, 208 SS (40.1 %) have a middle school educational level, 240 SS (46.2%) have a high school educational level, 71 SS (446.2%) are graduated; geographical areas, 80 SS (15.4%) come from northern Italy, 387 SS (74.6%) from central Italy, 52 SS (10.0%) from southern Italy; place of residence, 383 SS (73.8%) live in big cities, 136 (26.2%) live in towns.