PSIHOZA BIPOLARA INDIFERENTA LA VREME SI GEOGRAFIE

  • Bauer M et al. - Daily self-reported mood ratings of most patients with bipolar disorder did not show a seasonal pattern. Neither climate nor latitude has a primary influence on the daily mood changes of most patients receiving medication for bipolar disorder.
Methods
  • 360 patients who were receiving treatment as usual recorded mood daily (59,422 total days of data).
  • Both the percentage of days depressed and hypomanic/manic, and the episodes of depression and mania were determined.
  • The observations were provided by patients from different geographic locations in North and South America, Europe and Australia.
  • These data were analyzed for seasonality by climate zone using both a sinusoidal regression and the Gini index.
  • Additionally, the influence of latitude and climate variables on mood was estimated using generalized linear models for each season and month.
Results
  • No seasonality was found in any climate zone by either method.
  • In spite of vastly different weather, neither latitude nor climate variables were associated with mood by season or month.

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