Murakami Ryu, Morioka Daigo, Fukui Kenko, Hiraide Atsushi, Kuroki Hisanaga
Meiji University of Integrative Medicine, School of Health Science and Medical Care, Faculty of Emergency Medical Science Nantan City Japan.
Chiba Institute of Science, Graduate School of Risk and Crisis Management Choshi City Japan.
PCN Rep. 2025 Apr 7;4(2):e70092. doi: 10.1002/pcn5.70092. eCollection 2025 Jun.
This retrospective study investigated the relationship among psychiatric consultation history, method of suicide, and the background information of individuals who died by suicide, based on postmortem information obtained from the Osaka Prefectural Medical Examiner's Office.
We analyzed the data of 343 cases of suicide that occurred in Osaka City in 2017, focusing on factors associated with a history of psychiatric consultations. The Cochran-Armitage trend test was used to evaluate whether there was a significant linear trend in the distribution of case counts across 10-year age groups. Univariate and multivariate logistic regression analyses were used to identify the factors associated with a history of psychiatric consultations prior to death.
The results revealed that female sex, history of suicide attempts, and choosing jumping as the suicide method compared to choosing hanging were the significant factors associated with a history of psychiatric consultations prior to death. Factors associated with not having a history of psychiatric consultations prior to death were being employed (compared to being unemployed), being a student (compared to being unemployed), and being older (compared to being younger). The Cochran-Armitage trend test revealed no significant linear trend in the distribution of case counts.
The study highlights the need for targeted mental health interventions for specific demographic groups, as well as further research on the impact of mental health conditions and age-related factors on suicide methods. These results may contribute to a deeper understanding of the risk factors for suicide and help in improving suicide prevention strategies.
本回顾性研究基于从大阪府法医办公室获取的尸检信息，调查了精神科会诊史、自杀方式与自杀死亡者的背景信息之间的关系。
我们分析了2017年发生在大阪市的343例自杀案例的数据，重点关注与精神科会诊史相关的因素。采用 Cochr an-Armitage趋势检验来评估病例数在10岁年龄组中的分布是否存在显著的线性趋势。单因素和多因素逻辑回归分析用于确定与死亡前精神科会诊史相关的因素。
结果显示，女性、自杀未遂史以及与选择上吊相比选择跳楼作为自杀方式是与死亡前精神科会诊史相关的显著因素。与死亡前没有精神科会诊史相关的因素是就业（与失业相比）、是学生（与失业相比）以及年龄较大（与年龄较小相比）。 Cochr an-Armitage趋势检验显示病例数分布无显著线性趋势。
该研究强调了针对特定人群进行有针对性的心理健康干预的必要性，以及进一步研究心理健康状况和年龄相关因素对自杀方式的影响。这些结果可能有助于更深入地了解自杀风险因素，并有助于改进自杀预防策略。
