Key result
The Chinese version of the PHQ-9 demonstrated high validity for screening depressive syndrome in general hospital outpatients, with a sensitivity of 91%, specificity of 97%, and a Kappa value of 0.884.
Why the study?
Does the Chinese version of the PHQ-9 have good reliability and validity for screening depressive syndrome in general hospital outpatients?
Cross-Sectional (n=600)
No
Does the Chinese version of the PHQ-9 have good reliability and validity for screening depressive syndrome in general hospital outpatients?
Effect estimate: Kappa 0.884
p-value: p=<0.01
The Chinese version of the PHQ-9 demonstrates good reliability and validity for screening depressive syndrome in general hospital outpatients.
Chinese PHQ-9 may support depression screening in outpatients; leaves open generalizability and prospective outcome trials.
We evaluated the reliability, validity and detection rate of the Depressive Syndrome module of the Patient Health Questionnaire (PHQ-9) in general hospital outpatients. Totally 600 general hospital outpatients were evaluated using the PHQ-9. The internal reliability, test-retest reliability and validity were examined. Cronbach's α coefficient of PHQ-9 was 0.857 and the test-retest reliability was 0.947. The correlation coefficient of the nine items with the total score of the scale was 0.588 - 0.784. The sensitivity, specificity of PHQ-9 and Kappa value was 91, 97% and 0.884, respectively. The detection rate was 16.3% (95% CI: 13.4 - 19.3%). The Chinese version PHQ-9 was shown to have good reliability and validity for screening of depressive syndrome in general hospital outpatients.
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Cui-dong et al. (2011) conducted a cross-sectional in Depressive syndrome (n=600). Patient Health Questionnaire-9 (PHQ-9) vs. Structured Clinical Interview for DSM-IV (SCID) was evaluated on Validity (sensitivity, specificity, and Kappa value) of PHQ-9 for detecting depressive syndrome (Kappa 0.884, p=<0.01). The Chinese version of the PHQ-9 demonstrated high validity for screening depressive syndrome in general hospital outpatients, with a sensitivity of 91%, specificity of 97%, and a Kappa value of 0.884.
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