Sumary of Insomnia results in high health care burden, but often goes unrecognized, untreated:
- Morin reports receiving grants from the Canadian Institutes of Health Research during the conduct of the study and receiving grants from Canopy and Idorsia, personal fees for serving on advisory boards from Eisai, Merck, Pear Therapeutics and Sunovion and royalties from Mapi Research Trust Royalties outside the submitted work..
- in a study of a Canadian cohort that included more than 3,000 people, with more than 40% of individuals experiencing insomnia that continued for the entire 5-year follow-up period..
- The findings may impact the prognosis associated with insomnia, as well as management of the condition, given long-term consequences seen with the disorder, according to the researchers, which can affect medical morbidity, psychological health and occupational outcomes..
- “Although pathophysiologic features of insomnia remain largely unknown, there is increasing evidence showing that persistent insomnia is associated with long-term adverse outcomes, such as increased risk for psychological (eg, depression), occupational (absenteeism) and medical morbidity (eg, hypertension) and even reduced life expectancy,”.
- “Despite its pervasiveness and adverse consequences, there is limited knowledge on the natural course of insomnia over long intervals, particularly related to incidence, persistence, remission and factors that moderate its trajectory over time..
- Morin, PhD, full professor in the department of psychology at Laval University and Canada Research Chair in Sleeping Disorders, and colleagues aimed to review the prevalence, persistence and remission rates of insomnia and the most frequent courses of insomnia over a 5-year period..
- The researchers categorized participants at each assessment as being good sleepers, having an insomnia disorder or having subsyndromal insomnia..
- Participants also filled out a comprehensive survey about sleep and insomnia, lifestyles and work schedules, physical and mental health, and medication and substance abuse..
- Of these participants, the researchers excluded 346 participants because they reported a sleep disorder other than insomnia (eg, sleep apnea;.
- During the 5-year follow-up period, 13.9% of initial good sleepers developed an insomnia syndrome (95% CI, 11%-17.5%)..
- Among participants with insomnia at baseline, 37.5% reported that insomnia persisted at each of the 5 annual follow-up visits..
- However, remission rates among those with subsyndromal insomnia were almost double the rates among those with an insomnia syndrome at 1 year (37.5%;.
- Yearly trajectories demonstrated that individuals who were good sleepers at baseline were 4.2 times more likely to remain good sleepers in the following year (95% CI, 3.51-4.89), but once they developed insomnia, they were equally likely to report symptoms (47% probability) than to return to being a good sleeper (53% probability) 1 year later..
- Likewise, participants who had an insomnia syndrome at any given assessment were more likely (adjusted OR [aOR], 1.6;…