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Suicide from river bridges.

C H Cantor¹, M A Hill

¹Queensland Department of Health, Brisbane.

The Australian and New Zealand Journal of Psychiatry

|September 1, 1990

Summary

Preventing suicide attempts from one bridge does not automatically lead to attempts from another nearby bridge. A study found significant differences in individuals engaging in suicidal behavior from two Brisbane bridges.

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Area of Science:

Public Health
Environmental Psychology
Behavioral Science

Background:

High river bridges are recognized as common sites for suicide attempts.
Understanding the substitutability of suicide attempt locations is crucial for targeted prevention strategies.

Purpose of the Study:

To investigate whether individuals engaging in suicidal behavior at a newly opened bridge in Brisbane were similar to those from an older, adjacent bridge.
To assess the potential for displacement of suicidal behavior to alternative locations.

Main Methods:

A naturalistic experimental study was conducted following the opening of a new high river bridge.
Comparative analysis of samples engaging in suicidal behavior from the new bridge and the older adjoining bridge.

Main Results:

Substantial differences were observed between the samples of individuals engaging in suicidal behavior from the two bridges.
The findings indicate that the populations are not interchangeable.

Conclusions:

Preventing access to one bridge for suicide attempts is unlikely to result in a proportional increase in attempts from a nearby alternative bridge.
While some displacement may occur, it is not automatic, suggesting the importance of location-specific risk factors.

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