[Diffusion of smoking among high school students at U.S.L. No. 18 of the Tuscan region].

Abstract

Between young people: 51% of male have never smoked, and only 38% of the females. If increase the age, increase also the percentage of whom that have had first meeting with cigarette smoke. Begin previously boys and they smoke more strongly. Today young people begin to smoke always more precociously, even if they are more informed.