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Publication - Professor Nello Cristianini

    Seasonal variation in antidepressant prescriptions, environmental light and web queries for seasonal affective disorder

    Citation

    Lansdall-Welfare, T, Lightman, S & Cristianini, N, 2019, ‘Seasonal variation in antidepressant prescriptions, environmental light and web queries for seasonal affective disorder’. British Journal of Psychiatry, vol 215., pp. 481-484

    Abstract

    The state of an individual's mental health depends on many factors. Determination of the importance of any particular factor within a population needs access to unbiased data. We used publicly available data-sets to investigate, at a population level, how surrogates of mental health covary with light exposure. We found strong seasonal patterns of antidepressant prescriptions, which show stronger correlations with day length than levels of solar energy. Levels of depression in a population can therefore be determined by proxy indicators such as web query logs. Furthermore, these proxies for depression correlate with day length rather than solar energy. Declaration of interest None.

    Full details in the University publications repository