Psychological Medicine



Original Article

The role of alcohol in suicide: a case-control psychological autopsy study


KAIRI KÕLVES a1a2c1, AIRI VÄRNIK a1a2a3, LIINA-MAI TOODING a2 and DANUTA WASSERMAN a3
a1 Estonian–Swedish Mental Health & Suicidology Institute, Estonian Centre of Behavioural and Health Sciences, Tallinn, Estonia
a2 Tartu University, Faculty of Social Sciences, Tartu, Estonia
a3 Swedish National and Stockholm County Centre for Suicide Research and Prevention of Mental Ill-Health (NASP), Institute for Psychosocial Medicine (IPM); Department of Public Health Sciences, Karolinska Institute, Stockholm, Sweden

Article author query
kolves k   [PubMed][Google Scholar] 
varnik a   [PubMed][Google Scholar] 
tooding lm   [PubMed][Google Scholar] 
wasserman d   [PubMed][Google Scholar] 

Abstract

Background. The purpose of the study was to estimate the proportion of alcohol abuse and dependence (AAD) among suicides and controls, and to compare the incidence of AAD documented by clinicians with diagnoses derived from a research protocol.

Method. AAD according to DSM-IV was diagnosed on the basis of interviews with relatives of people who committed suicide and with controls. A total of 427 people who committed suicide during one year were paired by region, gender, age and nationality with controls randomly selected from general practitioners' lists.

Results. Alcohol abuse was found in 10% and alcohol dependence in 51% of suicide cases. The corresponding figures for controls were 7% and 14% respectively. AAD was a statistically significant predictor of completed suicides, while abstinence was a significant predictor for female suicides and former use a significant predictor for older male suicides. AAD was diagnosed in 68% of male and 29% of female suicides. Middle-aged (35–59 years) males who committed suicide had the highest risk of alcohol dependence. Among suicide cases only 29% had received a lifetime diagnosis of AAD, against 23% of controls.

Conclusions. AAD was significantly more prevalent among suicides than controls. Overall, the proportion of male suicides affected by alcohol was the same in the present psychological autopsy study as in our previous findings for Estonia on the aggregate level, while the share of female suicides with an AAD diagnosis was dramatically higher on the individual level. AAD is markedly underdiagnosed by general practitioners and clinicians.


Correspondence:
c1 Estonian–Swedish Mental Health & Suicidology Institute, Estonian Centre of Behavioural and Health Sciences, Õie 39, Tallinn 11615, Estonia. (Email: kaikolves@hot.ee)


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