Cigarette smoking has been associated with sleep disturbances.
However, little is known about how smoking affects restless legs syndrome (RLS) and sleep bruxism, two movement disorders associated with sleep.
From a nationwide survey of 2,019 Canadian adults, we estimated the prevalence of smoking to be 36%. Although there was no difference between smokers and nonsmokers for RLS prevalence, almost twice as many smokers (12%) as nonsmokers (7%) were aware of experiencing sleep bruxism.
The estimated risk of a smoker suffering from RLS was nonsignificant.
On the other hand, the risk of a smoker grinding his or her teeth was moderate (odds ratio=1.9).
Analysis of sleep laboratory findings revealed no differences in motor RLS and periodic leg movements in sleep (PLMS) indices between smoking and nonsmoking patients ; after adjustment for age, there were no differences in sleep efficiency, latency, number of awakenings, or the arousal index for the RLS/PLMS patients.
Among those suffering from bruxism, smokers had more tooth-grinding episodes than did nonsmokers (35.0 vs. 7.0 ; p=0.056) ; none of the sleep variables differentiated sleep bruxism smokers from nonsmokers.
It appears that cigarette smoking does not influence RLS/PLMS, whereas the risk that smoking and tooth grinding are concomitant is moderate.
Smoking was not significantly associated with more motor activity in RLS/PLMS, but more grinding was noted in sleep bruxism.
Mots-clés Pascal : Sommeil, Bruxomanie, Tabagisme, Facteur risque, Epidémiologie, Canada, Amérique du Nord, Amérique, Impatience membre inférieur syndrome, Système nerveux pathologie, Trouble neurologique, Trouble sensibilité, Homme
Mots-clés Pascal anglais : Sleep, Bruxism, Tobacco smoking, Risk factor, Epidemiology, Canada, North America, America, Restless legs syndrome, Nervous system diseases, Neurological disorder, Sensitivity disorder, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0389709
Code Inist : 002B17A02. Création : 12/09/1997.