The Development of Suicidal Screening Test (SU-9) - การพัฒนาแบบคัดกรองผู้ที่เสี่ยงต่อการฆ่าตัวตาย (SU-9)

Abstract

         The objective of this study was to develop and validate suicidal screening test. The study was cross-sectional descriptive research which divided into 2 phases. Phases 1 was expert panel meeting to modify the old version of suicidal screening test for content validity from content validity index, then pilot study in the community. Phases 2 was the concurrent validity study of diagnosis-test
agreement by 4 psychiatrists and staff meeting before data collection. Qualification of Khon-Kaen provincial citizens in this study were economic problem and suicidal risk, aged 15-65 years, able to communicate with researchers, staying in the village at least 1 year and good cooperation. In all, 859 samples were interviewed by suicidal screening test before consulting 1 psychiatrist using M.I.N.I. (Mini International Neuropsychiatric Interview) part c (suicidality). Data was analyzed by using the descriptive statistics, sensitivity, specificity, positive predictive value, negative predictive value, accuracy, ROC curve and prevalence. The study was done during December 2010 - September
2011. It was reported that there were 44 persons with suicidal risk and 815 normal persons. The prevalence of suicidal risk in this study was 5.1 percent. This suicidal screening test consisted of 3 components 1) previous attempted suicide and plan 2) stressor and 3) alcohol consumption. Internal consistency with 9 items and Cronbach’s alpha coefficient was 0.56. The optimum cut-off point was the score of 1 with the sensitivity of 75.0 percent, specificity of 82.3 percent, positive predictive value of 18.6 percent, negative predictive value of 98.4 percent, and the accuracy of 82.0 percent.
Key words: development of screening test, suicidal risk