Attempters from this list who died upon arrival at the hospital were excluded from the analysis. A suicide attempt was defined as “a self-destructive behavior with intent to end one’s life independent of resulting damage”. Data on suicide attempts that occurred nationwide between Jand Novemwere collected. First, we obtained the results of a nationwide survey on suicide attempters, which was done as a pilot study of Korean Nationwide Suicide Survey (KNSS) based on law. In this study, we collected and analyzed two kinds of secondary data. Interventions to restrict access to more lethal suicidal methods could be a useful strategy to reduce the suicide rates in South Korea. Suicide completers’ choice of suicide methods are different from those of suicide attempters and tend to be more lethal. In terms of gender, males used more lethal methods of suicide. While about 70.0% of the suicide attempters used relatively non-lethal methods, almost all suicide completers used lethal methods, based on our classification of the lethality of the method. Drug poisoning, stabbing, and other chemical poisoning were evaluated as relatively non-lethal compared to other suicide methods. Drug poisoning was the most frequent method in suicide attempters, whereas hanging was the most common method among suicide completers. The most frequently used methods of suicide were different in the two groups of attempters and completers. In addition, we investigated certain demographic factors that are associated with the choice of suicide method by evaluating their lethality. The purpose of this study is to compare and analyze the difference between suicide attempters and completers in terms of the suicide methods used and the lethality of these methods. In light of the increased suicide rate in Korea, it has become important for researchers to examine the various factors associated with it.
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