TABLE 1.

Patient characteristics.

Variable	Mean	SD	Minimum	Maximum
Age	48	18	20	66
Body mass index (BMI)	24.58	3.82	20.00	32.80
Baseline CES-D Score	15.22 (Median = 16)	6.89	4.00	25.00
Baseline Pain Severity Score [Brief Pain Inventory (Cleeland and Ryan, 1994)]	4.17	1.57	1.75	6.25
Years in pain	8.7	9.2	1.5	30.0