Table 4.

Results for univariate linear regression models.

	P-value	B Coefficient
Age	0.9	0.001
Intervention Group	0.09	−0.63
Pain duration	0.6	0.001
PPT	0.7	0.07
MEP	0.6	0.14
ICF	0.5	0.12
ICI PRE	0.1	0.79
SF36 Physical functioning	0.9	0.002
SF36 Physical role functioning	0.4	−0.008
SF36 Bodily pain	0.8	−0.006
SF36 General health Perceptions	0.6	−0.009
SF36 Vitality	0.2	−0.02
SF36 Social role functioning	0.3	0.01
SF36 Emotional role functioning	0.5	−0.004
BDI	0.4	0.022
VNS Pain baseline	0.01	0.44
VNS Anxiety baseline	0.01	0.24