ArticlePLOS global public health2022
Spatial statistical analysis of regional disparities in suicide among policy units in Japan: Using the Bayesian hierarchical model.
Article in PLOS global public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Evaluation of the benefits of neutral bicarbonate ionized water baths in an open-label, randomized, crossover trial.Scientific reports · 2024Trial
- The importance of longitudinal evaluation using DAT-SPECT in organophosphate-induced toxic parkinsonism.PCN reports : psychiatry and clinical neurosciences · 2026Article
- Association of municipal rurality and area deprivation with cause-specific mortality in Japan: a nationwide ecological study.BMJ public health · 2026Article
- Spatiotemporal epidemiology and hierarchical analysis of suicide mortality and associated risk factors in Thailand using national surveillance data during 1997-2021.Scientific reports · 2025Article
- Regional disparities in suicide among patients with cancer: A nationwide population-based study in Japan.Cancer medicine · 2023Article
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Authors and funding
8 authors at 8 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Suicide prevention is a crucial policy issue in Japan to be addressed nationally. Nevertheless, if there are regional differences in suicide, even in adjacent sub-regions, measures may need to be taken at the sub-regional level. Previous studies have not compared regional differences in suicide based on the size of policy units, such as prefectures, secondary medical areas, and municipalities. This study used the number of suicides from open data for 10 years from 2009 to 2018 to obtain shrinkage estimates of the standardized mortality ratio (SMR) using the Bayesian hierarchical model. We visualized and compared the regional disparities in suicide for each policy unit. For each gender and policy unit, adjacent regions had similar clusters of SMRs and positive spatial autocorrelation of global Moran's I (p < 0.001 for each). Comparisons between each policy unit showed that even if the SMR was low for the prefectural units, there were regions with high SMRs in municipalities and secondary medical areas, and vice versa. It was found that assessing suicide solely on a prefecture-by-prefecture basis may overlook regional disparities in suicide. This research emphasizes the need to establish suicide indicators at the secondary medical or municipal level and execute individual suicide prevention interventions in neighboring communities. Prefectures can also play a role in developing collaborative cooperation between neighboring regions by acting as actors.
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Registered trials
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