SLEEP, SNORING AND SMOKING IN HIGH-SCHOOL-STUDENTS

The relationship between snoring, sleep and smoking was investigated i n young students from a survey by self-administered questionnaire on s leep habits, conducted in high schools in the educational district of Lyons (France). Our sample consisted of 11,417 boys and 13,265 girls b etween 15 and 20 years of age. We found that 28.4% of girls and 38.8% of boys reported that they snored. In both sexes, snoring was associat ed with short (<7 h) and long (>10 h) sleep length, nocturnal awakenin gs and daytime sleepiness. Smoking was a risk factor for snoring. Mult iple logistic regression showed that the odds-ratio for habitual snori ng increased when tobacco consumption increased from a 1.30 (moderate smokers) to 2.26 (heavy smokers) in girls and from 1.38 to 2.09 in boy s. This dose-effect relationship between smoking and snoring suggests that a substantial proportion of snoring cases is attributable to toba cco consumption in young students.