Validation of the bipolar spectrum diagnostic scale in mexican psychiatric patients

• Juan Pablo Sánchez de la Cruz ^[1] ; Ana Fresán ^[2] ; Diana Laura González Moralez ^[2] ; María Lilia López-Narváez ^[4] ; Carlos Alfonso Tovilla-Zarate ^[1] ; Sherezada Pool-García ^[5] ; Isela Juárez-Rojop ^[1] ; Yazmín Hernández-Díaz ^[1] ; Thelma Beatriz González-Castro ^[1] ; María de Lourdes Vera-Campos ^[3]
  1. [1] Universidad Juárez Autónoma de Tabasco

     Universidad Juárez Autónoma de Tabasco

     México

     
  2. [2] Instituto Nacional de Psiquiatría

     Instituto Nacional de Psiquiatría

     México

     
  3. [3] Hospital Regional de Alta Especialidad del Bajío

     Hospital Regional de Alta Especialidad del Bajío

     México

     
  4. [4] Hospital General de Yajalón (Mexico)
  5. [5] Hospital General de Comalcalco (Mexico)

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• Localización: The Spanish Journal of Psychology, ISSN 1138-7416, Nº 21, 2018, págs. 1-6
• Idioma: inglés
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• Resumen

  • The Bipolar Spectrum Diagnostic Scale (BSDS) is widely validated and used as a screening tool for bipolar disorder. However, there is no BSDS validated version for its use in Mexican population. The aim of the present study was to examine the BSDS diagnostic capacity, and to evaluate its criterion validity and internal consistency for its use in Mexican psychiatric patients. We recruited 200 patients who attended the psychiatric outpatient service of a Mental Health Specialized Hospital and were screened for bipolar disorder using BSDS. To determine the cut-off point, sensitivity and specificity, we used the SCID–I diagnosis as the gold standard in 100 participants with bipolar disorder and 100 with major depression. Internal consistency according to Cronbach’s coefficient alpha was .81. The area under ROC curve for the overall discriminability of BSDS against the criterion of SCID–I for bipolar disorder was .90. Finally, a cut-off value of 12 reached the most stable sensitivity and specificity, with predictive powers higher than .80. In conclusion, the properties of the scale including internal consistency, sensitivity and specificity, make of BSDS a valuable instrument for screening bipolar disorder in Mexican psychiatric population.