期刊
LANCET REGIONAL HEALTH-WESTERN PACIFIC
卷 39, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lanwpc.2023.100820
关键词
Suicide; Suicide prevention; Suicide cluster; Spatial analysis; Spatio-temporal analysis
This study aimed to identify high-risk suicide-methods clusters based on location of residence and suicide incidence, and to compare the characteristics of cases and spatial units inside and outside clusters. The findings revealed suicide clusters involving jumping and charcoal burning methods, with different housing distribution compared to outside clusters. Socially disadvantaged units were more prevalent within most of the overall suicide and suicide by jumping clusters. The study highlights the need for consistent support from stakeholders within suicide clusters to ensure effective suicide prevention programs.
Background This study aimed to (i) identify high-risk suicide-methods clusters, based on location of residence and suicide incidence; and (ii) compare the characteristics of cases and spatial units inside and outside clusters.Methods Suicide data of 4672 cases was obtained from the Coroner's Court reports in Hong Kong (2014-2018). Monthly aggregated suicide numbers based on location of residence, and suicide incidence, were obtained in small tertiary planning units (STPUs). Community-level characteristics and population of STPUs were retrieved from 2016 Census. Retrospective space-time analyses were performed to identify locations with elevated suicide rates over specific time periods, i.e., spatial-temporal clusters. Clusters were evaluated for overall suicide (any method), as well as jumping, hanging, and charcoal burning methods, in location of residence and suicide incidence. Bi-variate analysis was performed to compare the characteristics of cases, and spatial units, inside and outside the clusters.Findings Suicide clusters involving jumping and charcoal burning were identified, but no hanging clusters were found. The within-cluster distribution of types of housing was different from that of outside. For most of the overall suicide and suicide by jumping clusters, spatial units within the clusters were more socially disadvantaged compared to those outside.Interpretation Clusters varied by suicide methods, location of residence and location of incidence. The findings highlighted the need for consistent and concerted support from different stakeholders within suicide clusters, to ensure appropriate design, implementation and sustainability of effective suicide prevention programs.
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