HKJC Centre for Suicide Research and Prevention, University of Hong Kong, Hong Kong.
Br J Psychiatry. 2010 Mar;196(3):241-2. doi: 10.1192/bjp.bp.109.065185.
We conducted an exploratory controlled trial to examine the efficacy of restricting access to charcoal in preventing suicides from carbon monoxide poisoning by charcoal burning in Hong Kong. All charcoal packs were removed from the open shelves of major retail outlets in the intervention region for 12 months; in the control region, charcoal packs were displayed as usual. The suicide rate from charcoal burning was reduced by a statistically significant margin in the intervention region (P<0.05) but not in the control region. We observed no significant change in the suicide rate using other methods in either location.
我们进行了一项探索性对照试验，以检验限制接触木炭的方法对预防香港地区因木炭燃烧导致一氧化碳中毒自杀的效果。在干预地区，所有的木炭包都从主要零售商店的开放货架上移除了 12 个月；而在对照地区，木炭包则按常规展示。干预地区的自杀率（使用木炭自杀）显著降低（P<0.05），而对照地区则没有。我们在两个地区都没有观察到其他自杀方式的自杀率有显著变化。
