Department of Social Medicine, University of Bristol, Bristol BS8 2PS, UK.
Eur J Public Health. 2011 Apr;21(2):204-8. doi: 10.1093/eurpub/ckq092. Epub 2010 Jul 14.
Little is known about the characteristics of people who die by jumping from different locations (e.g. bridges, buildings) and the factors that might influence the effectiveness of suicide prevention measures at such sites.
We collected data on suicides by jumping (n = 134) between 1994 and 2003 in Bristol, UK, an area that includes the Clifton Suspension Bridge, a site renowned for suicide. We also carried out interviews with Bridge staff and obtained records of fatal and non-fatal incidents on the bridge (1996-2005) before and after preventive barriers were installed in 1998.
The main sites from which people jumped were bridges (n = 71); car parks (n = 12); cliffs (n = 20) and places of residence (n = 20). People jumping from the latter tended to be older than those jumping from other sites; people jumping from different sites did not differ in their levels of past self-harm or current psychiatric care. As previously reported, suicides from the bridge halved after the barriers were erected; people jumping from the Clifton Suspension Bridge following their construction were more likely to have previously self-harmed and to have received specialist psychiatric care. The number of incidents on the bridge did not decrease after barriers were installed but Bridge staff reported that the barriers 'bought time', making intervention possible.
There is little difference in the characteristics of people jumping from different locations. Barriers may prevent suicides among people at lower risk of repeat self-harm. Staff at suicide hotspots can make an important contribution to the effectiveness of installations to prevent suicide by jumping.
人们从不同地点(如桥梁、建筑物)跳楼自杀的特点以及可能影响这些地点自杀预防措施效果的因素知之甚少。
我们收集了 1994 年至 2003 年期间在英国布里斯托尔发生的 134 例跳楼自杀事件的数据,该地区包括克利夫顿悬索桥,这是一个以自杀闻名的地点。我们还对桥的工作人员进行了访谈,并获得了 1996 年至 2005 年期间在 1998 年安装预防屏障前后桥上致命和非致命事件的记录。
人们跳楼的主要地点是桥梁(n=71);停车场(n=12);悬崖(n=20)和居住地(n=20)。从后者跳楼的人往往比从其他地点跳楼的人年龄更大;从不同地点跳楼的人过去的自残行为或当前的精神科护理水平没有差异。正如之前报道的那样,在安装了屏障后,桥上的自杀人数减少了一半;在建造了克利夫顿悬索桥之后从桥上跳下的人更有可能以前有过自残行为,并接受过专业的精神科护理。安装屏障后桥上的事件数量并没有减少,但桥的工作人员报告说,屏障“争取了时间”,使得干预成为可能。
从不同地点跳楼自杀的人的特征差异不大。对于那些再次自残风险较低的人,障碍可能会阻止他们自杀。自杀热点地区的工作人员可以为预防跳楼自杀设施的有效性做出重要贡献。