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

Table 4

t-test analysis between unipolar and bipolar patients that are in maintenance therapy with lithium salts versus patients that are not.

	No lithium	Lithium	t value	P
	(𝑁=38 unipolars, 17 bipolars) (𝑁=55)	(𝑁=5 unipolars, 50 bipolars) (𝑁=55)
	Mean ± SD	Mean ± SD
Sleep disturbance	36.28±24.11	23.30±20.64	3.03	𝟎.𝟎𝟎𝟑
Short of breath	24.72±28.54	8.361±13.71	3.83	𝟎.𝟎𝟎𝟎
Sleep adequacy	39.93±27.81	22.00±23.76	3.63	𝟎.𝟎𝟎𝟎
Sleep somnolence	39.83±23.83	31.33±25.98	1.79	𝟎.𝟎𝟔𝟎