Bridge T P, Potkin S G, Zung W W, Soldo B J
J Nerv Ment Dis. 1977 Jan;164(1):18-24. doi: 10.1097/00005053-197701000-00004.
While suicide prevention services are continually expanding, efforts to measure their efficacy are seldom found in the literature. This study examines the effect of suicide prevention centers in North Carolina on the suicide rate in 1970. The data are examined in a ecological context, i.e., pertinent demographic variables are included in the analysis of the suicide rate in North Carolina counties with an emphasis on structural and contextual effects. A review of the literature on suicide prevention center efficacy, a description of those counties in North Carolina that support such centers, and a rigorous testing of their effect on the countywide suicide rate are undertaken in the present analysis. All of the analyses of the data indicate that the centers have minimal effect on the suicide rate.
尽管自杀预防服务在不断扩展，但文献中很少能找到衡量其效果的相关研究。本研究考察了北卡罗来纳州自杀预防中心在1970年对自杀率的影响。数据是在生态背景下进行考察的，即相关人口统计学变量被纳入到对北卡罗来纳州各县自杀率的分析中，重点关注结构和背景效应。本分析对自杀预防中心效果的文献进行了综述，描述了北卡罗来纳州支持此类中心的各县情况，并对其对全县自杀率的影响进行了严格检验。所有数据分析均表明，这些中心对自杀率的影响微乎其微。
