A better understanding of the epidemiology of insomnia symptoms in Canada is important to guide resource allocation and inform the development of effective interventions. The present article aims to address this knowledge gap, and builds on Tjepkema’s study by also providing data on the duration of nighttime insomnia symptoms among Canadians. Furthermore, it is unknown whether school-aged children and adolescents in Canada also report high prevalence of nighttime insomnia symptoms. Note 7 However, it is largely unknown whether nighttime insomnia symptoms have remained stable in recent years in Canada. Note 4 Note 5 Note 6 Tjepkema reported that 13.4% of Canadian adults aged 15 or older had nighttime symptoms of insomnia in 2002 that is, they had difficulty going to sleep or staying asleep most of the time or all of the time. Note 4 Note 5 Note 6 For example, it is estimated that about 25% of adults are dissatisfied with their sleep, 10% to 15% report symptoms of insomnia associated with daytime consequences, and 6% to10% meet criteria for an insomnia disorder. The prevalence of insomnia in epidemiological studies can range from 6% to 48% depending on the definition used ( i.e., insomnia symptoms, with or without daytime consequences, dissatisfaction with sleep, and insomnia disorder). Note 1 Note 2 There is a clear need to develop more cost-effective, efficient and accessible therapies for insomnia. Note 3 Despite its high prevalence and burden, insomnia is often unrecognized and untreated because of barriers to its assessment and management. Note 1 Note 2 In Canada, the individual economic burden of insomnia is estimated at $5,010 per person per year, with nearly 90% of this amount attributed to indirect costs such as work absenteeism and reduced productivity. Note 2 Persistent insomnia has been associated with adverse health outcomes, including reduced quality of life and physical and psychological morbidity. Note 1 Insomnia is predominantly characterized by dissatisfaction with sleep and difficulties initiating or maintaining sleep, along with substantial distress and impairments of daytime functioning. Insomnia is the most prevalent sleep disorder and affects a large proportion of the population on a situational, recurrent or chronic basis. For this article… Abstract Tables and figure
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