[Prevalence of teenage sleeping disorders].

Unlabelled: Teenage sleeping disorders can have short- and long-term consequences such as learning disorders, accidents, depression, and type 2 diabetes.

Objective: To assess the prevalence of sleeping disorders in high school students in the southwest of Brittany (Finistère), France. To search for family and social factors causing these disorders and drug use.

Method: Observational multicenter study that took place in May, 2015, asking high school students to anonymously complete a questionnaire during school time. A variable was created: sleep disorders (TrS+) when teenagers responded "often" or "very often" to at least one of the six questions concerning sleeping disorders.

Results: The prevalence of TrS+ was 73 % (4170/5556). These teenagers had difficulty falling asleep (36 %), woke up during the night (33 %), or had nightmares (10 %). Their sleep routine was disrupted (35 %), they did not feel rested the following day (49 %): 9 % were late for class related to their sleeping disorders. TrS+ were more recurrent among females (OR: 2.64; P<0.0001). A negative atmosphere in high school (OR: 2.64; P<0.0001), tobacco use (>10 cigarettes per a day) (OR: 2.39; P<0.0001), alcohol (OR: 1.4, P=0.009), marijuana (<1 time per day; OR: 2.05; P=0.009), and time spent using a computer or watching television (>8h per a day; OR: 2.7; P<0.0001) had an impact on their sleep quality. Ten percent of TrS+ individuals consume medications and 9 % cannabis to help them fall asleep.

Conclusion: Technology, drugs, and well-being at school have an impact on sleep quality. Screening of teenagers with sleeping disorders and information programs for teenagers must be provided by the teaching and medical staff.