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

Table 2

t-test analysis between unipolar and bipolar patients.

	Unipolars (𝑁=46)	Bipolars (𝑁=67)	t value	P
	Mean ± SD	Mean ± SD
Total Number of episodes	5.39±4.86	8.36±7.91	−2.27	𝟎.𝟎𝟐𝟓
Duration of maintenance therapy (months)	40.36±50.91	54.51±48.83	−1.25	0.214
Episodes during maintenance therapy	0.26±0.77	0.68±1.50	−1.67	0.097
GSS	8.39±4.88	8.22±4.65	0.18	0.854
Sleep disturbance	37.39±25.04	24.32±20.40	3.01	𝟎.𝟎𝟎𝟑
Snoring	38.67±29.05	48.91±39.96	−1.47	0.145
Short of breath	19.57±24.03	14.38±23.49	1.13	0.260
Sleep adequacy	36.00±26.26	27.34±27.62	1.65	0.101
Sleep somnolence	31.39±20.54	38.59±27.80	−1.49	0.139
Sleep hours	7.26±1.73	7.41±1.36	−0.52	0.604
Recurrence index	2.87±2.95	4.36±2.99	−0.55	𝟎.𝟎𝟏𝟎