Identifying predictors of planned suicide attempts (PSA) is critical because these are associated with grave consequences. Using data of suicide attempters visiting emergency departments, we investigated whether the Columbia-Suicide Severity Rating Scale (C-SSRS) subscales, by retrospectively evaluating ideation before an attempt, could predict the occurrence of PSA versus unplanned suicide attempts using logistic regression analyses. The severity subscale was used as a continuous (model A) and a categorical (model B) variable. In model A, higher scores on each subscale were associated with increased risk of PSA. In model B, the highest score on the severity subscale and a higher intensity subscale score predicted PSA. The severity and intensity subscales had areas under receiver operating curves of 0.712 and 0.688 with optimum cutoff points of 4/5 and 15/16, respectively. In addition, being aged 30 to 49 and 50 to 69 years, being male, interpersonal stress, and depressive and adjustment disorders increased PSA risk. The C-SSRS subscales, along with sociodemographic and clinical risk factors, can predict PSA.
*Department of Neuropsychiatry, Seoul National University Hospital;
†Department of Psychiatry and Behavioral Science, Seoul National University College of Medicine, Seoul;
‡Department of Psychiatry, Inha University Hospital, Incheon, Republic of Korea;
§Department of Psychiatry, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California;
∥Mental Health Center, Seoul National University Health Care Center, Seoul;
¶Cancer Survivorship Branch, National Cancer Control Institute;
#Mental Health Clinic, National Cancer Center, Goyang-si, Gyeonggi-do; and
**Department of Psychiatry, Pusan National University Yangsan Hospital, Yangsan-si, Gyeongsangnam-do, Republic of Korea.
Send reprint requests to Yong Min Ahn, MD, PhD, Department of Neuropsychiatry, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea. E-mail: email@example.com.