The mortality risk of night-time and daytime insomnia symptoms in an older population

Autor: Amy Harvey, Hannah Scott, Yohannes Adama Melaku, Leon Lack, Alexander Sweetman, Gorica Micic, Nicole Lovato
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-023-36016-4
Popis: Abstract The current study examined the association between insomnia symptoms and all-cause mortality in older adults (≥ 65 years). Data was used from 1969 older adults [M = 78 years, SD = 6.7 years] who participated in the Australian Longitudinal Study of Ageing. Insomnia symptoms were defined by nocturnal symptoms (difficulty falling asleep, difficulty maintaining sleep, early morning awakenings) and daytime symptoms (concentration difficulties, effort, inability to get going). Frequency of symptoms were combined to calculate an insomnia symptom score ranging from 0 (no symptoms) to 24 (sever symptoms) and quintiles of the score were constructed to provide a range of symptom severity. Multivariable Cox models were conducted to assess associations between insomnia symptom severity and mortality risk. In the median follow up of 9.2 years, there were 17,403 person-years at risk and the mortality rate was 8-per 100 person-years. Insomnia symptom severity was associated with increased mortality in the most severe quintile (adjusted HRQ1vsQ5 = 1.26, 95%CI [1.03–1.53], p = .02). Subsequent analyses showed this association was driven by daytime symptoms (adjusted HRQ1vsQ5 = 1.66, [1.39–2.00], p
Databáze: Directory of Open Access Journals
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