Reliability,validity, and cut-off score of the Chinese version of the Suicidal Behaviors Questionnaire-Revised / 西安交通大学学报(医学版)

ABSTRACT

【Objective】 To examine the reliability and validity of the Suicidal Behaviors Questionnaire-Revised (SBQ-R) among Chinese undergraduates and to find out cut-off score for screening the risk of suicide in clinical undergraduates. 【Methods】 A total of 488 Chinese undergraduates participated in this study. Of them, 366 participants were asked to complete the Chinese version of SBQ-R, Psychache Scale, and Satisfaction with Life Scale. And 45 undergraduates were re-tested after four weeks; 122 undergraduates were tested by using the Suicidality Module Section of the Mini International Neuropsychiatric Interview and the Chinese version of SBQ-R. 【Results】 ① The results showed that The Chinese version of SBQ-R had one factor with good fit indices. ② The internal consistency reliability, split-half reliability, and one-month retest reliability of the total questionnaire were 0.76, 0.79, and 0.93, respectively. ③The total score of the SBQ-R in Chinese was positively correlated with psychache but negatively correlated with satisfaction of life, indicating that the scale has good criterion-related validity. ④ Receiver operating characteristics (ROC) curve evaluation suggested that the cut-off score was 9 in terms of identifying the clinical undergraduates at high risk of suicide. 【Conclusion】 SBQ-R is a reliable, valid, and practical instrument to measure the risk of suicide among Chinese undergraduates. SBQ-R>9 is the best cut-off value for screening for high suicide risk in China.