Original Research

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
South African Journal of Psychiatry | Vol 20, No 2 | a491 | DOI: https://doi.org/10.4102/sajpsychiatry.v20i2.491 | © 2014 Pankaj Kumar Mittal, Shubham Mehta, Ram Kumar Solanki, Mukesh Kumar Swami, Parth Singh Meena | This work is licensed under CC Attribution 4.0
Submitted: 02 September 2013 | Published: 30 July 2014

About the author(s)

Pankaj Kumar Mittal, Department of Psychiatry, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India, India
Shubham Mehta, Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India, India
Ram Kumar Solanki, Department of Psychiatry, Dr Sampurnanand Medical College, Jodhpur, Rajasthan, India, India
Mukesh Kumar Swami, Department of Psychiatry, BPS Government Medical College for Women, Sonepat, Haryana, India, India
Parth Singh Meena, Department of Psychiatry, Sawai Man Singh Medical College, Jaipur, Rajasthan, India, India

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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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