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To document and provide a micro analysis of the relationship between insomnia and health problems, health-care use, absenteeism, productivity and accidents.A population-based sample of 953 French-speaking adults from Québec, Canada. Participants were categorized as having insomnia syndrome (SYND) or insomnia symptoms (SYMPT) or as good sleepers (GS). They completed questionnaires on sleep, health,...
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