. Author manuscript; available in PMC: 2009 Aug 21.

Published in final edited form as: Eur J Pain. 2007 May 23;12(1):104–115. doi: 10.1016/j.ejpain.2007.04.001

Table 1.

One-Way Analyses of Variance (ANOVA) and Chi-Square Analyses Across Pain Clinic Sites for the Descriptive Characteristics of the Sample

	df Between	df Within	SS Between	SS Within	MS Between	MS Within	F
One-way ANOVAs
Regression Variables
PASS cognitive	3	276	61.89	36671.97	20.63	132.87	.16
PASS escape/avoidance	3	276	657.99	24475.78	219.33	88.68	2.47
PASS fearful appraisal	3	276	94.429	26589.97	31.48	96.34	.33
PASS physiological	3	276	680.43	34629.21	226.81	125.47	1.81
MPQ total	3	276	2450.51	63811.46	816.84	231.20	3.53^a
STAXI state	3	276	220.67	9907.73	73.56	35.90	2.05
STAXI trait	3	276	71.81	7727.39	23.94	28.00	.86
CSQ-R catastrophizing	3	276	248.03	15067.44	82.68	54.59	1.51
BDI somatic	3	276	383.63	5789.17	127.88	20.98	6.10^c
BDI cognitive	3	276	437.02	12080.80	145.67	43.77	3.33^a
PILL total score	3	276	145.67	43.77	2780.51	1171.49	2.37

Demographic Variables
Age	3	273	2737.80	54652.34	912.60	200.19	4.559^b
Years of Education	3	237	115.51	1439.93	38.50	6.08	6.337^c
Pain Duration	3	256	120731.12	3961075.63	40243.71	15472.95	2.601
Average pain rating	3	264	2898.53	164476.06	966.18	623.02	1.551
			df	N		χ²

Demographic Variables (Chi-square tests)
Sex			3	277		42.73^c
Race			9	272		18.98^a
Marital Status			12	277		37.59^c
Employment Status			6	239		7.82

p<.05

p<.01

p<.001