RESUMO
A cross-sectional survey of smoking habits was carried out among students at the School of Medicine in Pelotas, State of Rio Grande do Sul, Brazil, in 1986 and 1991. The overall participation rate for the originally selected sample was 96% and 98% respectively. In 1986, regular smokers comprised 21.6% of the students and 14.6% in 1991; former smokers were 7.3% and 10.9%, respectively. There was no association between sex, parental smoking, and smoking habits of the students. Students in their last two years of medical training showed an increased prevalence in smoking habits (1991). Respiratory symptoms were associated with smoking habits. It was concluded that the prevalence of smoking is decreasing among students of the School of Medicine in Pelotas.