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

Published in final edited form as: Pain. 2010 Aug 16;151(1):220–225. doi: 10.1016/j.pain.2010.07.016

Table 3.

Means and standard deviations and group differences on depression and sleep variables.

Variable	Mean (SD)		t or F	p	η²
Variable	Pain Group	Healthy	t or F	p	η²

Pain Intensity	6.14 (1.70)	3.63 (1.41)	7.12	.00	.63
Depressive Symptoms (raw score)	13.4 (9.89)	8.84 (6.54)	7.01	.01	.07
Sleep Quality (0–10 NRS)	5.27 (1.37)	6.69 (1.49)	21.4	.00	.19
Total Sleep Time (minutes)	428.7 (45.9)	411.6 (71.0)	1.69	.20	.02
Sleep Efficiency	83.4 (4.84)	84.7 (3.68)	2.01	.16	.02
WASO (minutes)	67.08 (19.09)	61.65 (17.0)	2.08	.15	.02