Is there a seasonal pattern in non-seasonal affective disorders?

G. Simos, E. Dimitriou

Research output: Contribution to journalArticlepeer-review


Thirty-six pure depressives who consecutively took the DSM-III-R diagnosis of non chronic, non-seasonal Unipolar Major Depression were classified according to the season of onset (Sept-Feb vs Mar-Aug) of their depression. Comparisons between those two groups along several variables such age, sex, severity and recurrence of Depression, precipitating factors and clinical characteristics failed to reveal any statistically significant differences. Nevertheless winter depression tended to be less severe, affected proportionally more women, and was more likely to present with less irritability and anxiety, more fatigue and loss of energy, less somatic complaints and less decreased appetite.

Original languageEnglish
Pages (from-to)167-171
Number of pages5
JournalEuropean Journal of Psychiatry
Issue number3
Publication statusPublished - 1995


  • clinical picture
  • depression
  • seasonal affective disorder


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