The association between suicidal ideation and increased mortality from natural causes

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dc.contributor.authorBatterham, Philip
dc.contributor.authorCalear, Alison L.
dc.contributor.authorMackinnon, Andrew J.
dc.contributor.authorChristensen, Helen
dc.date.accessioned2014-03-31T23:28:49Z
dc.date.available2014-03-31T23:28:49Z
dc.date.issued2013-09-25
dc.date.updated2015-12-11T09:08:37Z
dc.description.abstractBackground: Despite strong evidence for increased suicide mortality among individuals experiencing thoughts of suicide, the effect of suicidal ideation on increased natural mortality has not been evaluated. The present study aimed to assess whether there is excess mortality from all natural causes or from specific natural causes that is attributable to suicidal ideation. Adjustments were made for a range of demographic, mental health and physical health measures to examine evidence for specific mechanisms of the relationship. Method: A community-based Australian cohort of 861 older adults was followed for up to 17 years. Vital status and cause of death were ascertained from a national death registry. Results: After adjusting for demographics, physical health and mental health, presence of suicidal ideation was associated with a 23% increase in the risk of mortality from natural causes (p=0.034). The increased mortality was largely attributable to heart disease deaths (hazard ratio=1A3, p=0.041). Limitations: There was a limited number of deaths from respiratory disease or stroke, and modest rates of suicidal ideation in the cohort. Assessment of suicidal ideation was brief, while adjustment for mental health symptoms relied on non-diagnostic measures. Conclusions: Although the relationship between suicidal ideation and mortality from natural causes was partly explained by physical and mental health status, thoughts of suicide independently accounted for an increased risk of mortality. Further research should examine whether this relationship is mediated by poorer health behaviours among individuals experiencing thoughts of suicide. (C) 2013 Elsevier B.V. All rights reserved.
dc.format6 pages
dc.identifier.issn0165-0327
dc.identifier.other1573-2517
dc.identifier.urihttp://hdl.handle.net/1885/11517
dc.publisherElsevier
dc.relationhttp://purl.org/au-research/grants/nhmrc/973301
dc.relationhttp://purl.org/au-research/grants/nhmrc/933301
dc.relationhttp://purl.org/au-research/grants/nhmrc/179805
dc.relationhttp://purl.org/au-research/grants/nhmrc/1035262
dc.relationhttp://purl.org/au-research/grants/nhmrc/525411
dc.relationhttp://purl.org/au-research/grants/nhmrc/1013199
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0165-0327/ “Pre-print allowed on any website or open access repository, Voluntary deposit by author of authors post-print allowed on institutions open scholarly website including Institutional Repository, without embargo, where there is not a policy or mandate. Publisher's version/PDF cannot be used…” from SHERPA/RoMEO site (as at 31/03/14)
dc.sourceJournal of Affective Disorders 150.3 (2013): 855-860
dc.subjectsuicidal ideation
dc.subjectmortality
dc.subjectcause-specific mortality
dc.subjectelderly
dc.subjectheart disease
dc.titleThe association between suicidal ideation and increased mortality from natural causes
dc.typeJournal article
local.bibliographicCitation.issue3
local.bibliographicCitation.lastpage860
local.bibliographicCitation.startpage855
local.contributor.affiliationBatterham, Philip J., Australian National University, Mental Health Research Center
local.contributor.affiliationCalear, Alison L., Australian National University, Mental Health Research Center
local.contributor.authoremailphilip.batterham@anu.edu.auen_AU
local.contributor.authoruidBatterham, Philip, u4435982
local.contributor.authoruidCalear (previously Neil), Alison, u4245801
local.identifier.absfor111714 - Mental Health
local.identifier.absseo920410 - Mental Health
local.identifier.ariespublicationf5625xPUB4708
local.identifier.citationvolume150
local.identifier.doi10.1016/j.jad.2013.03.018
local.identifier.scopusID2-s2.0-84888320617
local.identifier.thomsonID000324038000020
local.identifier.uidSubmittedByu5259801en_AU
local.publisher.urlhttp://www.elsevier.com/en_AU
local.type.statusAccepted versionen_AU

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