Table 1.

Demographics and Pain History

	Low	High
	Psych	Psych
Variable	(n=21)	(n=19)	Sig.
Age (avg., years)	49.1	47.2	NS
Gender (%female)	52.4	50	NS
Race (% Caucasian)	81	70	NS
WorK status (% working)	81	55	NS
Worker's Comp. (% yes)	9.5	20	NS
Marital status (% married)	42.9	25	NS
Smoking (% yes)	9.5	40	NS
Previous Lumbar Surgery (% yes)	19	10	NS
Pain Duration (avg., years)	5.1	9.3	NS
Baseline Pain Intensity (avg., 0–10)	4.4	5.3	NS
Radicular Pain (% yes)	57.1	55	NS
Neuropathic Pain (% yes)	33	70	p=.02
Disability Level (% disability)	28.4	45.4	p=.0001