Reliability of the mood disorder questionnaire : comparison with the structured clinical interview for the DSM-IV-TR in a population sample
Dodd, Seetal, Williams, Lana J., Jacka, Felice N., Pasco, Julie A., Bjerkeset, Ottar and Berk, Michael 2009, Reliability of the mood disorder questionnaire : comparison with the structured clinical interview for the DSM-IV-TR in a population sample, Australian and New Zealand journal of psychiatry, vol. 43, no. 6, pp. 526-530, doi: 10.1080/00048670902873706.
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Reliability of the mood disorder questionnaire : comparison with the structured clinical interview for the DSM-IV-TR in a population sample
Objective: The Mood Disorder Questionnaire (MDQ) is a widely used self-report screening instrument for the detection of bipolar disorder in clinical populations. The aim of the present study was therefore to investigate the reliability of this instrument.
Methods: Screening results using the MDQ were compared with results obtained using the Structured Clinical Interview for DSM-IV-TR Research Version, Non-patient edition (SCID) in a community-based sample of 1066 women. Trained personnel, who were blind to the results of the MDQ screen, conducted clinical interviews.
Results: Using the MDQ, 21 women screened positive for bipolar disorder, and using the SCID diagnoses, 24 women were confirmed with a diagnosis of bipolar disorder. Six women were detected on both instruments. Compared to the SCID, the sensitivity for the MDQ was 25%, specificity 99%, positive predictive value 28%, negative predictive value 98%, and a demonstrated kappa of 0.25. The MDQ failed to detect any of the 11 participants in the study with bipolar II disorder and missed seven of 13 participants with bipolar I disorder or bipolar not otherwise specified. Of the 21 women who screened positive using the MDQ, 19 had current or past psychopathologies other than bipolar disorder.
Conclusion: The MDQ has substantial limitations for detection of bipolar disorder, in particular bipolar II disorder, in non-clinical populations.
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