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Journal Article

Citation

Stefanac N, Hetrick S, Hulbert C, Spittal MJ, Witt K, Robinson J. BMC Public Health 2019; 19(1): e1389.

Affiliation

Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Road, Parkville, VIC, 3052, Australia. jo.robinson@orygen.org.au.

Copyright

(Copyright © 2019, Holtzbrinck Springer Nature Publishing Group - BMC)

DOI

10.1186/s12889-019-7742-9

PMID

31660926

Abstract

BACKGROUND: Australian mortality statistics suggest that young female suicides have increased since 2004 in comparison to young males, a pattern documented across other Western high-income countries. This may indicate a need for more targeted and multifaceted youth suicide prevention efforts. However, sex-based time trends are yet to be tested empirically within a comprehensive Australian sample. The aim of this study was to examine changes over time in sex-based rates and characteristics of all suicides among young people in Australia (2004-2014).

METHODS: National Coronial Information System and Australian Bureau of Statistics data provided annual suicide counts and rates for 10-24-year-olds in Australia (2004-2014), stratified by sex, age group, Indigenous status and methods. Negative binomial regressions estimated time trends in population-stratified rates, and multinomial logistic regressions estimated time trends by major suicide methods (i.e., hanging, drug poisoning).

RESULTS: Between 2004 and 2014, 3709 young Australians aged 10-24 years died by suicide. Whilst, overall, youth suicide rates did not increase significantly in Australia between 2004 and 2014, there was a significant increase in suicide rates for females (incident rate ratio [IRR] 1.03, 95% confidence interval [CI] 1.01 to 1.06), but not males. Rates were consistently higher among Aboriginal/Torres Strait Islander youth, males, and in older (20-24-years) as compared to younger (15-19 years) age groups. Overall, the odds of using hanging as a method of suicide increased over time among both males and females, whilst the odds of using drug-poisoning did not change over this period.

CONCLUSIONS: We showed that suicide rates among young females, but not young males, increased over the study period. Patterns were observed in the use of major suicide methods with hanging the most frequently used method among both sexes and more likely among younger and Aboriginal/Torres Strait Islander groups.

FINDINGS highlight the need to broaden current conceptualizations of youth suicide to one increasingly involving young females, and strengthen the case for a multifaceted prevention approach that capitalize on young females' greater help-seeking propensity.


Language: en

Keywords

Australia; Epidemiology; Females; Risk factors; Suicide; Young people; Youth

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