Bipolar Spectrum Diagnostic Scale

The Bipolar Spectrum Diagnostic Scale (BSDS) is a psychiatric screening rating scale for bipolar disorder.[1] It was developed by Ronald Pies, and was later refined and tested by S. Nassir Ghaemi and colleagues. The BSDS arose from Pies's experience as a psychopharmacology consultant, where he was frequently called on to manage cases of "treatment-resistant depression". Patients are typically diagnosed during their 20s. The lifetime prevalence of BD is approximately 1%, rising to 4% if a broader definition of bipolar spectrum disorder is used. The English version of the scale consists of 19 question items and two sections. It differs from most scales in that it does not list separate items, but rather presents a short paragraph talking about experiences that people with bipolar spectrum disorders often have. The person checks off which phrases or experiences fit them. Bipolar spectrum disorder includes bipolar I and II, and other cases not meeting criteria for those disorders.[2]

The scale was validated in its original version and demonstrated high diagnostic sensitivity, meaning that most people with confirmed bipolar diagnoses scored high on the BSDS.[3] The BSDS may do better than other scales at detecting types of bipolar disorder that do not involve a full manic episode, such as bipolar II or cyclothymic disorder.[4]

## See also

* Rating scales for depression
* Bipolar Disorder

## References

1. ↑ "Bipolar Spectrum Diagnostic Scale (BSDS)". UBM Medica, LLC. 11 April 2013. http://www.psychiatrictimes.com/clinical-scales-bsds/bipolar-spectrum-diagnostic-scale-bsds.
2. ↑ Harrison, P. J., Geddes, J. R., & Tunbridge, E. M. (2018). The emerging neurobiology of bipolar disorder. Trends in neurosciences, 41(1), 18-30
3. ↑ Nassir Ghaemi, S; Miller, CJ; Berv, DA; Klugman, J; Rosenquist, KJ; Pies, RW (February 2005). "Sensitivity and specificity of a new bipolar spectrum diagnostic scale". Journal of Affective Disorders 84 (2–3): 273–7. doi:10.1016/S0165-0327(03)00196-4. PMID 15708426.
4. ↑ Zaratiegui, Rodolfo M.; Vázquez, Gustavo H.; Lorenzo, Laura S.; Marinelli, Marcia; Aguayo, Silvia; Strejilevich, Sergio A.; Padilla, Eduardo; Goldchluk, Aníbal et al. (August 2011). "Sensitivity and specificity of the mood disorder questionnaire and the bipolar spectrum diagnostic scale in Argentinean patients with mood disorders". Journal of Affective Disorders 132 (3): 445–449. doi:10.1016/j.jad.2011.03.014. ISSN 1573-2517. PMID 21440943.

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