TY - JOUR
PY - 2017//
TI - Media effects on suicide methods: a case study on Hong Kong 1998-2005
JO - PLoS one
A1 - Cheng, Qijin
A1 - Chen, Feng
A1 - Yip, Paul S. F.
SP - e0175580
EP - e0175580
VL - 12
IS - 4
N2 - BACKGROUND: Previous studies have suggested that mass media's reports of new suicide methods will increase suicides using the same method. The same pattern seems not to apply to a conventional suicide method, unless it was used by a celebrity.
OBJECTIVE: 1) to examine media effects on both new and non-new suicide methods during 1998 and 2005 in Hong Kong (HK), when a new method by burning charcoal (CB suicide) was spreading in the region. 2) to examine how CB competed with non-CB methods in terms of media coverage and "recruiting" suicidal persons in the socio-economic context.
METHODS: A self- and mutual- exciting process model was fitted to the data, adjusting for divorce rate, unemployment rate, and property price index. Breaking the whole period into onset, peak, and post-peak stages, the model was fitted again to examine the differences.
RESULTS: Comparable copycat effects were found on both CB and non-CB suicide news. The only cross-method media effects were found in the onset stage when non-CB suicide news showed suppressing effect on CB suicides. CB suicides reported a significant self-excitation effect. A higher divorce rate and lower property price index were associated with significantly more suicides incidences and more suicide news.
CONCLUSIONS: The emerging of CB suicide method did not substitute media coverage of non-CB suicide in HK. Media effects in this case were not limited to new suicide method or celebrity suicide. The effects were further fueled by adverse socio-economic conditions.
Language: en
LA - en SN - 1932-6203 UR - http://dx.doi.org/10.1371/journal.pone.0175580 ID - ref1 ER -