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Methods: The PHQ-9 questionnaire was administered to 257 participants older than 18 years, chosen using stratified random sampling. Data from the 2014 community health survey conducted by the Korea Centers for Disease Control and Prevention were examined and analyzed by SPSS 23.0 with an independent t-test, factor analysis and receiver operating characteristic curve analysis.

Conclusions: The PHQ-9-mFIN showed adequate reliability and excellent construct validity among female health-care workers with recurrent LBP and physically strenuous work.The diagnostic validity of the 9-item PHQ-9 was established in studies involving 8 primary care and 7 obstetrical clinics. PHQ-9 scores > 10 had a sensitivity of 88 and a specificity of 88 for Major Depressive Disorder. Reliability and validity of the tool have indicated it TI - 한국판 Patient Health Questionnaire-9 (PHQ-9)의 신뢰성, 타당성 및 임상적 유용성T2 - Global Health and Nursing (글로벌 건강과 간호)AB - Purpose: This study aimed to verify the reliability, validity and clinical usefulness of the Korean version of the 9-item depression module of the Patient Health Questionnaire-9 (PHQ-9) among adult Korean participants. Selected from the samples with PHQ-9 10 and 64 patients from PHQ-9 <10 were reviewed by two psychiatric physicians for SCID, and the reliability and validity study on PHQ-9 was performed. Correlation analysis among PHQ-9 total scores, HADS Statistical analyses All data were input into a database established by EPIDATA 3.1, andThe PHQ-9: Validity of a brief depression severity measure. Patient Health Questionnaire-9 was a reliable and valid method for depression screening in.

After 10 days, 76 students from the former list were randomly selected for a structured interview with psychiatrists and underwent repeated PHQ-9 test. Four hundred two medical freshmen were involved in PHQ-9 study for internal reliability. The process of establishing the PHQ-9 Vietnamese version strictly followed the international guideline for translation and cultural adaptation of psychometric instruments recommended by WHO. The aims of this study are: (1) Translating and cultural adapting the Vietnamese version of PHQ-9 (2) Establishing reliability and (3) Identifying validity of PHQ-9 Vietnamese version within Vietnamese medical students.

Further researches should assess PHQ-9 Vietnamese version’s psychometric features towards other medical college groups or other forms of handling tests, listing as mobile apps or web-based systems. The cut-off score is 12 for epidemiological purposes and is 7 for screening purposes. The reliability and validity of PHQ-9 Vietnamese version are advisable for applying in mental health management for medical freshmen. The sensitivity and specificity at the cut-off 12 were 71% and 93%, and 7 was 82% and 71%, respectively. High internal and test–retest consistency for PHQ-9 (Cronbach’s alpha as 0.81 and Spearman correlation coefficient as 0.83) were identified. ROC curve analysis was performed to evaluate diagnostic efficiency.