Validity and reliability of the Korean version of the Mood Disorder Questionnaire

Screening the risk of bipolar spectrum disorders: Validity evidence of the Mood Disorder Questionnaire in adolescents and young adults

“…25---28 Equivalent results have been found when levels of internal consistency examining samples of patients with bipolar disorder. 30,31,59,60 Nevertheless, as far as we know, no previous study had examined the reliability of the MDQ scores using the alpha for ordinal data or from the perspective of the TRI. Incorporating new forms of measuring MDQ reliability is of interest.…”

Detección del riesgo para los trastornos del espectro bipolar: evidencias de validez del Mood Disorder Questionnaire en adolescentes y adultos jóvenes

“…Estudios previos llevados a cabo en muestras de la población general encuentran niveles de consistencia interna para la puntuación total del MDQ superiores a 0,75 25---28 . Resultados equivalentes se han hallado cuando se examinan los niveles de consistencia interna en muestras de pacientes con trastorno bipolar 30,31,59,60 . No obstante, hasta el momento, ningún trabajo previo que se conozca había examinado la fiabilidad de las puntuaciones del MDQ con el alfa para datos ordinales o desde la óptica de la TRI.…”

Lifetime prevalence, sociodemographic correlates, and diagnostic overlaps of bipolar spectrum disorder in the general population of South Korea

“…First, the MDQ is a self-reporting screening tool, not a diagnostic instrument based on clinical interviews. However, the MDQ has been validated to have acceptable specificity and sensitivity (Hirschfeld et al, 2003b;Jon et al, 2009). Moreover, as Chung et al (2008) suggested, we reduced the impairment threshold from moderate to minimal in order to minimize under-diagnosis of subclinical hypomania.…”

“…To improve its low sensitivity, researchers have suggested that the threshold for functional impairment be eliminated or lowered to a minor level, and this modification was proven to achieve a 20-50% point improvement in sensitivity without sacrificing specificity (Chung et al, 2009;Miller et al, 2004;Zimmerman and Galione, 2011). Meanwhile, Jon et al (2009) validated the K-MDQ in a clinical sample with the elimination of parts 2 and 3, which yielded acceptable levels of sensitivity (0.75) and specificity (0.69) against unstructured clinical diagnoses. Recently, Bae et al (2013) carried out an investigation on a large clinical sample of Korean college students using the K-MDQ.…”

“…Analogously, Chang et al (2008) has shown that the lower prevalence rates of MDD in East Asian countries than in the West might be related with cross-cultural differences in symptom manifestation, and similar phenomena could have influenced the diagnostic process of BP. In order to complement the possible under-estimation of BP using the K-CIDI, we also administered the Korean version of the Mood Disorder Questionnaire (K-MDQ) (Hirschfeld et al, 2003b;Jon et al, 2009) after the K-CIDI interview in 6 catchment areas. In the end, a total of 3013 subjects completed the K-MDQ assessment.…”