Australian and New Zealand Journal of Psychiatry

Objective: The road to a headland that had become a suicide jumping hotspot was temporarily closed because of construction work.This created an opportunity to assess whether loss of vehicular access would lead to a reduction in suicides and emergency police callouts for threatened suicide at the site.Method: Deaths at the headland were ascertained for a 10 year period before road closure and for 2 years following closure using records from the local police inquest officer, the coroner’s pathologist and Marine Search and Rescue.Police provided a list of police callouts for threatened suicide at the site for a 4 year period before closure and for 2 years following closure.Simple rates were compared and incident rate ratios were calculated where possible.Results: There were 13 deaths at the headland involving suicide or open verdicts in the 10 years before access was restricted, and none in the 2 years following road closure.This difference was statistically significant (incident rate difference 0 1.3 deaths per year, 95% confidence interval (CI) 00.6Á2.0).No jumping suicides occurred elsewhere in the police district following the road closure.Police callouts for threatened suicide also fell significantly, from 19.3 per year in the 4 years prior to road closure to 9.5 per year for the following 2 years (incident rate ratio 02.0, 95%CI 01.2Á3.5).Conclusions: Preventing vehicular access to a suicide jumping hotspot was an effective means of suicide prevention at the site.There was no evidence of substitution to other jumping sites.