Depression Research and Treatment / 2012 / Article / Tab 3

Clinical Study

Seasonality and Sleep: A Clinical Study on Euthymic Mood Disorder Patients

Table 3

t-test analysis between unipolar and bipolar patients that have a family have a family history for mood disorders versus those that do not.

No family history ( )Family history ( )t value P
Mean ± SDMean ± SD

Age 0.27 0.786
Education −1.34 0.181
Age of onset 3.74
Duration of illness (years) −3.25
Number of depressive episodes −0.34
Number of manic episodes −2.66 0.319
Total number of episodes −1.00
Duration of maintenance therapy (months) −2.58 0.636
GSS −2.13

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