Suicide is one of the leading causes of death worldwide, according to background information in the article. As a result, the World Health Organization and the U.S. surgeon general have highlighted the need for more comprehensive data on the occurrence of suicidal thoughts and attempts, with the assumption that such data would be useful for planning national health care policy, as well as for evaluating efforts to reduce suicide and suicide-related behaviors.
Ronald C. Kessler, Ph.D., of Harvard Medical School, Boston, and colleagues examined nationally representative general-population trend data on the 12-month prevalence and treatment of suicide-related behaviors. Data came from the 1990-1992 National Comorbidity Survey and the 2001-2003 National Comorbidity Survey Replication. These surveys asked identical questions to 9,708 people aged 18 to 54 years about the past year's occurrence of suicidal ideation, plans, gestures, attempts, and treatment. Face-to-face interviews were administered in the homes of respondents.
The researchers found that no significant changes occurred between 1990-1992 and 2001-2003 in suicidal ideation (2.8 percent vs. 3.3 percent), plans (0.7 percent vs. 1.0 percent), gestures (0.3 percent vs. 0.2 percent), or attempts (0.4 percent-0.6 percent). Treatment increased dramatically among ideators who made a gesture (40.3 percent vs. 92.8 percent) and among ideators who made an attempt (49.6 percent vs. 79.0 percent). The authors add that " we found that risk of suicide-related behaviors is consistently elevated in several vulnerable subgroups, including the young, women, individuals with low education, and individuals lacking stable relationships or employment."
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