A cross-sectional study of factors affecting seasonality in bipolar disorder

Pankaj Kumar Mittal, Shubham Mehta, Ram Kumar Solanki, Mukesh Kumar Swami, Parth Singh Meena

Abstract


Background. Researchers have evinced interest in the effect of seasonal variations on mood and behavioural patterns in affective disorders. 

Objective. To study seasonality in bipolar disorder (BD) patients and also the factors affecting this seasonality. 

Method. Forty-nine patients with BD in euthymic phase were recruited and analysed using the Seasonal Pattern Assessment Questionnaire and Morningness-Eveningness Questionnaire. 

Results. Most of the patients were morning types but chronotype had no influence on seasonality. Age of patient and number of episodes were the most important factors affecting seasonality in BD. 

Conclusion. Seasonality and its influencing factors must be considered while managing bipolar disorder.


Keywords


Seasonality; Chronotype; Bipolar disorder

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DOI: http://dx.doi.org/10.4102/sajpsychiatry.v20i2.491

Submitted: 02 September 2013
Published: 30 July 2014




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South African Journal of Psychiatry    |    ISSN: 1608-9685 (PRINT)    |    ISSN: 2078-6786 (ONLINE)