Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study

<p><strong>Study Objectives:</strong> Sleep disorders are related to mental disorders. Yet few studies have examined their association with suicide. We examined whether males and females diagnosed with sleep disorders had higher rates of suicide than individuals not diagnosed with...

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Main Authors: Kjær Høier, N, Madsen, T, Spira, AP, Hawton, K, Benros, ME, Nordentoft, M, Erlangsen, A
Format: Journal article
Language:English
Published: Oxford University Press 2022
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author Kjær Høier, N
Madsen, T
Spira, AP
Hawton, K
Benros, ME
Nordentoft, M
Erlangsen, A
author_facet Kjær Høier, N
Madsen, T
Spira, AP
Hawton, K
Benros, ME
Nordentoft, M
Erlangsen, A
author_sort Kjær Høier, N
collection OXFORD
description <p><strong>Study Objectives:</strong> Sleep disorders are related to mental disorders. Yet few studies have examined their association with suicide. We examined whether males and females diagnosed with sleep disorders had higher rates of suicide than individuals not diagnosed with sleep disorders.</p> <p><strong>Methods:</strong>&nbsp;In a cohort study, nationwide data on all males and females aged over 15 years living in Denmark during 1980&ndash;2016 were analyzed. Sleep disorders were identified through diagnoses recorded during contacts to somatic hospitals. Incidence rate ratios (IRR) were estimated using Poisson regression models and adjusted for covariates.</p> <p><strong>Results:</strong>&nbsp;In all, 3 674 563 males and 3 688 164 females were included, of whom 82 223 (2.2%, mean age: 50.2 years, SD: 17.5) males and 40 003 (1.1%, mean age: 50.6 years, SD: 19.9) females had sleep disorder diagnoses. Compared with those with no sleep disorders, the adjusted IRR for suicide were 1.6 (95% CI, 1.4 to 1.7) and 2.2 (95% CI, 1.8 to 2.6) for males and females with sleep disorders, respectively. Excess rates for narcolepsy were found for males (IRR: 1.2, 95% CI, 1.0 to 1.5) and females (IRR: 3.3, 95% CI, 3.0 to 4.1), and for sleep apnea in males (IRR: 1.8, 95% CI, 1.5 to 2.2). A difference with respect to age and sex was observed (p &lt; 0.001) between males and females. Males and females had IRR of 4.1 (95% CI, 3.1 to 5.5) and 7.0 (95% CI, 4.8 to 10.1), during the first 6 months after being diagnosed with a sleep disorder.</p> <p><strong>Conclusions:</strong>&nbsp;Sleep disorders were associated with higher suicide rates even after adjusting for preexisting mental disorders. Our findings suggest attention toward suicidality in patients with sleep disorders is warranted.</p>
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spelling oxford-uuid:fc60d00a-aa99-46a8-9119-5c8560d34a402023-03-20T09:29:48ZAssociation between hospital-diagnosed sleep disorders and suicide: A nationwide cohort studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fc60d00a-aa99-46a8-9119-5c8560d34a40EnglishSymplectic ElementsOxford University Press2022Kjær Høier, NMadsen, TSpira, APHawton, KBenros, MENordentoft, MErlangsen, A<p><strong>Study Objectives:</strong> Sleep disorders are related to mental disorders. Yet few studies have examined their association with suicide. We examined whether males and females diagnosed with sleep disorders had higher rates of suicide than individuals not diagnosed with sleep disorders.</p> <p><strong>Methods:</strong>&nbsp;In a cohort study, nationwide data on all males and females aged over 15 years living in Denmark during 1980&ndash;2016 were analyzed. Sleep disorders were identified through diagnoses recorded during contacts to somatic hospitals. Incidence rate ratios (IRR) were estimated using Poisson regression models and adjusted for covariates.</p> <p><strong>Results:</strong>&nbsp;In all, 3 674 563 males and 3 688 164 females were included, of whom 82 223 (2.2%, mean age: 50.2 years, SD: 17.5) males and 40 003 (1.1%, mean age: 50.6 years, SD: 19.9) females had sleep disorder diagnoses. Compared with those with no sleep disorders, the adjusted IRR for suicide were 1.6 (95% CI, 1.4 to 1.7) and 2.2 (95% CI, 1.8 to 2.6) for males and females with sleep disorders, respectively. Excess rates for narcolepsy were found for males (IRR: 1.2, 95% CI, 1.0 to 1.5) and females (IRR: 3.3, 95% CI, 3.0 to 4.1), and for sleep apnea in males (IRR: 1.8, 95% CI, 1.5 to 2.2). A difference with respect to age and sex was observed (p &lt; 0.001) between males and females. Males and females had IRR of 4.1 (95% CI, 3.1 to 5.5) and 7.0 (95% CI, 4.8 to 10.1), during the first 6 months after being diagnosed with a sleep disorder.</p> <p><strong>Conclusions:</strong>&nbsp;Sleep disorders were associated with higher suicide rates even after adjusting for preexisting mental disorders. Our findings suggest attention toward suicidality in patients with sleep disorders is warranted.</p>
spellingShingle Kjær Høier, N
Madsen, T
Spira, AP
Hawton, K
Benros, ME
Nordentoft, M
Erlangsen, A
Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title_full Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title_fullStr Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title_full_unstemmed Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title_short Association between hospital-diagnosed sleep disorders and suicide: A nationwide cohort study
title_sort association between hospital diagnosed sleep disorders and suicide a nationwide cohort study
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