Access to means of suicide, occupation and the risk of suicide: a national study over 12 years of coronial data.

BACKGROUND: Availability of lethal means is a significant risk factor for suicide. This study investigated whether occupations with greater access to lethal means had higher suicide rates than those without access, and further, whether this relationship differed for females versus males. METHODS: A retrospective mortality study was conducted across the Australian population over the period 2001 to 2012. Data from the Australian Bureau of Statistics, which collects Census information on occupation for the Australian population, and the National Coroners Information System, which records information on suicide deaths, were combined. Employed suicide records were coded by occupation and work-related access to lethal means. Descriptive analysis and negative binomial regression were used to assess the relationship between access to means and suicide. RESULTS: Persons in occupations with access to firearms, medicines or drugs, and carbon monoxide more frequently used these methods to end their lives than those without access to means. Females employed in occupations with access to means had suicide rates that were 3.02 times greater (95% CI 2.60 to 3.50, p < 0.001) than those employed in occupations without access. Males in occupations with access had suicide rates that were 1.24 times greater than those without access (95% CI 1.16 to 1.33, p < 0.001). CONCLUSION: Work-related access to means is a risk factor for suicide in the employed population, but is associated with a greater risk for females than males. The findings of this study suggest the importance of controlling access to lethal methods in occupations where these are readily available.

Suicide among emergency and protective service workers: A retrospective mortality study in Australia, 2001 to 2012.

BACKGROUND: Emergency and protective services personnel (e.g., police, ambulance, fire-fighters, defence, prison and security officers) report elevated levels of job stress and health problems. While population-level research is lacking, there has been some research suggesting suicide rates may be elevated in emergency and protective services. OBJECTIVES: This paper compares suicide rates between emergency and protective services occupational groups over a 12-year period (2001-2012) in Australia. METHOD: Labour force data was obtained from the 2006 Australian Census. Suicide data was obtained from the National Coroners Information System (NCIS). Negative binomial regression was used to estimate the association between suicide and employment as an emergency or protective service worker (including prison and security officers) over the period 2001-2012, as compared to all other occupations. Information on suicide method was extracted from the NCIS. RESULTS: The age-adjusted suicide rate across all emergency and protective service workers was 22.4 (95% CI 19.5 to 25.2) per 100,000 in males and 7.8 in females (95% CI 4.6 to 11.00), compared to 15.5 per 100,000 (95% CI 15.2 to 15.9) for males and 3.4 (95% CI 3.2 to 3.6) for females in other occupations. The highest risk by subgroup was observed among those employed in the defence force, prison officers, and ambulance personnel. The major method of death for all occupational groups was hanging. CONCLUSIONS: Our results clearly highlight the need for suicide prevention among emergency and protective service occupations.