. Author manuscript; available in PMC: 2011 May 1.

Published in final edited form as: J Affect Disord. 2009 Jul 24;122(3):198–207. doi: 10.1016/j.jad.2009.06.030

Table 3.

Average sleep characteristics from sleep diary and sleep questionnaire

	Healthy (n=35)	Depressed/Anxious (n=20)	p-value
Pittsburg Sleep Quality Index	4.17 (1.69)	6.35 (2.08)	0.000^***
Average sleep onset latency	15.58 (11.52)	20.69 (15.62)	0.539
Average number of awakenings per night	1.19 (0.71)	1.74 (0.67)	0.106
Average hours of sleep per night	7.04 (0.79)	7.34 (0.65)	0.231

*Note: Sleep onset and hours slept per night are given for four days before entering the sleep lab, the habituation night, and the night of the study. Awakenings per night does not include the night of the study

^***

p<0.001