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Article: Assessing the effect of restricting access to barbecue charcoal for suicide prevention in New Taipei City, Taiwan: A controlled interrupted time series analysis

TitleAssessing the effect of restricting access to barbecue charcoal for suicide prevention in New Taipei City, Taiwan: A controlled interrupted time series analysis
Authors
KeywordsSuicide
Interrupted time series analysis
Charcoal-burning
Means restriction
Evaluation
Issue Date2021
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jad
Citation
Journal of Affective Disorders, 2021, v. 282, p. 795-802 How to Cite?
AbstractBackground: Suicides by carbon monoxide poisoning from burning charcoal increased markedly and contributed to a rise in overall suicides in Taiwan in the early 2000s. A previous study indicated short-term effectiveness on reducing suicides of a charcoal restriction programme, which involved voluntary actions from large chain retail stores to move charcoal bags from open shelves to locked cabinets starting from 1st May 2012, in New Taipei City, Taiwan. We investigated the longer-term effect of this programme. Methods: We calculated quarterly age-standardised charcoal-burning and overall suicide rates in New Taipei City and two comparison cities in 2007-2017. Controlled interrupted time-series analysis was used to examine the effect of the charcoal restriction programme. Results: There was no difference between the intervention and comparison cities in step changes in the rates (per 100,000) of charcoal-burning suicide (intervention minus comparison = -0.336, 95% confidence interval -1.173 to 0.502) and overall suicide (-0.270, -1.844 to 1.303) after the intervention, or changes in trends (slopes) in charcoal-burning suicide rates (0.007, -0.055 to 0.069) and overall suicide rates (0.049, -0.138 to 0.236) before and after the intervention. Limitations: There was no legislative requirement to enforce the charcoal restriction. The programme was also restricted to a subset of retail stores. Conclusion: The charcoal restriction programme in New Taipei City showed no effect on reducing charcoal-burning or overall suicides in the five years after its implementation. Future means restriction strategies for suicide prevention should optimise the programme sustainability, ensure the comprehensive means restriction, and monitor the long-term intervention effectiveness.
Persistent Identifierhttp://hdl.handle.net/10722/306753
ISSN
2020 Impact Factor: 4.839
2020 SCImago Journal Rankings: 1.892
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChang, SS-
dc.contributor.authorLin, CY-
dc.contributor.authorHsu, CY-
dc.contributor.authorChen, YY-
dc.contributor.authorYip, PSF-
dc.date.accessioned2021-10-22T07:39:07Z-
dc.date.available2021-10-22T07:39:07Z-
dc.date.issued2021-
dc.identifier.citationJournal of Affective Disorders, 2021, v. 282, p. 795-802-
dc.identifier.issn0165-0327-
dc.identifier.urihttp://hdl.handle.net/10722/306753-
dc.description.abstractBackground: Suicides by carbon monoxide poisoning from burning charcoal increased markedly and contributed to a rise in overall suicides in Taiwan in the early 2000s. A previous study indicated short-term effectiveness on reducing suicides of a charcoal restriction programme, which involved voluntary actions from large chain retail stores to move charcoal bags from open shelves to locked cabinets starting from 1st May 2012, in New Taipei City, Taiwan. We investigated the longer-term effect of this programme. Methods: We calculated quarterly age-standardised charcoal-burning and overall suicide rates in New Taipei City and two comparison cities in 2007-2017. Controlled interrupted time-series analysis was used to examine the effect of the charcoal restriction programme. Results: There was no difference between the intervention and comparison cities in step changes in the rates (per 100,000) of charcoal-burning suicide (intervention minus comparison = -0.336, 95% confidence interval -1.173 to 0.502) and overall suicide (-0.270, -1.844 to 1.303) after the intervention, or changes in trends (slopes) in charcoal-burning suicide rates (0.007, -0.055 to 0.069) and overall suicide rates (0.049, -0.138 to 0.236) before and after the intervention. Limitations: There was no legislative requirement to enforce the charcoal restriction. The programme was also restricted to a subset of retail stores. Conclusion: The charcoal restriction programme in New Taipei City showed no effect on reducing charcoal-burning or overall suicides in the five years after its implementation. Future means restriction strategies for suicide prevention should optimise the programme sustainability, ensure the comprehensive means restriction, and monitor the long-term intervention effectiveness.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jad-
dc.relation.ispartofJournal of Affective Disorders-
dc.subjectSuicide-
dc.subjectInterrupted time series analysis-
dc.subjectCharcoal-burning-
dc.subjectMeans restriction-
dc.subjectEvaluation-
dc.titleAssessing the effect of restricting access to barbecue charcoal for suicide prevention in New Taipei City, Taiwan: A controlled interrupted time series analysis-
dc.typeArticle-
dc.identifier.emailYip, PSF: sfpyip@hku.hk-
dc.identifier.authorityYip, PSF=rp00596-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jad.2020.12.147-
dc.identifier.pmid33601720-
dc.identifier.scopuseid_2-s2.0-85099462188-
dc.identifier.hkuros328523-
dc.identifier.volume282-
dc.identifier.spage795-
dc.identifier.epage802-
dc.identifier.isiWOS:000619295400106-
dc.publisher.placeNetherlands-

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