Development for depression and suicidal risk screening test (version 2009)

Abstract

Abstract
Objective: To study the sensitivity, specificity, predictive value and validity of a depression and suicidal risk screening test that compared with the psychiatristûs, diagnosis.
Method: The study was devided into four stage. Stage I, Revision of items of prior screening test by expertsû opioids and item analysis reconsideration. Stage II, the agreement test between
psychiatristûs diagnosis and psychiatric nurseûs diagnosis using M.I.N.I.. Stage III, the new version of depression and suicidal risk screening test was validate by a sample to 387 outpatients at Khon-Kaen Rajanagarindra Psychiatrict Hospital. Stage IV, validatity testing of this instrument in 1,471 participants at the four Primary Care Unit of Khon-Kaen province. In the last stage, each subject was interviewed by researcherûs team, if the test result was positive, they would be referred to the psychiatrist for diagnosis, if the test result was negative, they would be referred to the psychiatric nurse to interview by using M.I.N.I. Data analysis used descriptive
statistic, sensitivity and specificity.
Results: In depression part, the cronbachûs alpha coefficient was 0.66, cut off point >3 scores, sensitivity of 89.9%, specificity of 71.9%, positive predictive value of 27.0%, negative predictive
value of 98.4%, accuray of 73.7%. Prevalence of depression in community was 10.4%. In suicidal risk part, the cut off point of >1 scores which was sensitivity of 87.1%, specificity of 89.4%, positive predictive value of 42.2%, negative predictive value of 98.7%, and accuray of 89.2%. Prevalence of suicidal risk in community was 8.2%.
Conclusion: The depressing and suicidal risk screening test are high sensitivity, specificity and accuracy at least 70%. It is suitable for primary health care personnel to screen the population at risk.