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Purpose: Some East/Southeast Asian countries have experienced a rapid increase in suicide by charcoal burning over the past decade. Media reporting and Internet use were thought to contribute to the epidemic. We investigated the association between method-specific suicide incidence and both Internet search volume and newspaper reporting in Taiwan., Method: Weekly data for suicide, suicide-related Google search volume, and the number of articles reporting suicide in four major newspapers in Taiwan during 2008-2011 were obtained. Poisson autoregressive regression models were used to examine the associations between these variables., Results: In the fully adjusted models, every 10 % increase in Google searches was associated with a 4.3 % [95 % confidence interval (CI) 1.1-7.6 %] increase in charcoal-burning suicide incidence in the same week, and a 3.8 % (95 % CI 0.4-7.2 %) increase in the following week. A one-article increase in the United Daily was associated with a 3.6 % (95 % CI 1.5-5.8 %) increase in charcoal-burning suicide in the same week. By contrast, non-charcoal-burning suicide was not associated with Google search volume, but was associated with the Apple Daily's reporting in the preceding week., Conclusions: We found that increased Internet searches for charcoal-burning suicide appeared to be associated with a subsequent increase in suicide by this method. The prevention of suicide using emerging methods may include monitoring and regulating online information that provides details of these methods as well as encouraging Internet service providers to provide help-seeking information.

Background: Little research has been done on the complex relationships between the effect of news reporting on suicide incidence and vice versa (i.e., mutual causation). Furthermore, few studies have examined whether the entry of a new media outlet into a market changes the media dynamics in that market., Methods: A recursive two-way feedback model was used to test for mutual causation between suicide reporting and suicide incidence on a daily basis. We applied the model to examine the effect of the arrival of the Apple Daily (AD) newspaper in Taiwan and whether its suicide reporting affected the suicide incidence and suicide reporting of two other newspapers, the United Daily (UD) and the China Times (CT)., Results: The AD's entry into Taiwan led to a major shift in the relationship between suicide incidence and suicide reporting. The AD stimulated more suicide coverage by the UD and the CT the following day; conversely, the UD and the CT had no such impact on the AD. Before the entry of the AD, there was little correlation between daily suicide incidence and suicide reporting, but the suicide reporting of the UD and CT correlated significantly with daily suicide incidence after the entry of the AD., Limitations: Media impact was assessed by number of news items; detailed content analysis of the reporting was not conducted., Conclusions: The vicious business competition facing new dailies in Taiwan's media market has changed the mass media ecology. Efforts to prevent suicide by regulating the media should closely monitor not only the behavior of newcomers, but also the established news media's reaction to new competitors., (Copyright © 2012 Elsevier B.V. All rights reserved.)