Confluence of suicide and drug overdose epidemics in young Australian males

common causality?

Richard Taylor*, Andrew Page, Alex Wodak, Michael Dudley, Sonali Munot, Stephen Morrell

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Background: Young adult (aged 20-34) males experience higher mortality than females, and in age groups immediately younger and older, and with considerable variation in death rates over time. Trends in mortality and the cause structure of deaths among young adult Australian males over 1979-2011 are investigated, with a focus on suicide and drug overdose. Methods: Mortality data by age for the period 1979 to 2011 and Australian population figures were obtained from the Australian Bureau of Statistics (ABS). Cause of death was investigated using relevant International Classification of Diseases (ICD) codes, and mortality by cause was examined graphically over time according to various ICD aggregations. Mortality trends were contextualised in relation to labour market changes occurring in Australia from the 1980s to early 2000s. Results: Although motor vehicle accident (MVA) mortality declined by half between 1980 and 1998 in males, this did not translate into a reduction in total young male mortality because of simultaneous increases in suicide, and drug-related deaths classified as either poisoning (external cause) or drug dependence (mental disorders). When both suicide and drug-related deaths declined concurrently after 1998, total 20-34 year male mortality declined by almost half (46%) over 1998-2011. Declines in external cause mortality accounted for 63% of the total mortality decline in 20-34 year males over 1998-2011. The close temporal coincidence (statistically significant) of increases and declines in suicide and drug-related deaths over a decade suggests related causality. Conclusions: The coincidence of young male suicide and drug overdose mortality epidemics over the study period (excess deaths: 5000) suggest related causality such as exposure to common factors, including the labour market liberalisation and de-regulation of the 1990s, and deserves further investigation.

Original languageEnglish
Article number965
Pages (from-to)1-12
Number of pages12
JournalBMC Public Health
Volume18
Issue number1
DOIs
Publication statusPublished - 3 Aug 2018

Bibliographical note

Copyright the Author(s) 2018. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Drug overdose deaths
  • Labour market
  • Mortality trends
  • Suicide
  • Unemployment
  • Young adults

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