Table 10.

Change in perceived pain (VAS) associated with low back pain subgroup and contrasting study interventions

Low back subgroup	FD			ATEP			P valuea
	Number of subjects	Mean	SE	Number of subjects	Mean	SE
All chronic	91	23.75	2.25	71	14.38	2.25	0.00
Mild	27	15.53	4.71	25	14.41	3.00	0.85
Moderate	59	27.33	2.36	42	14.68	3.34	0.00
Severe	5	25.87	14.30	4	11.03	6.23	0.42
Moderate and severe combined	64	27.22	2.40	46	14.36	3.09	0.00
All recurrent	17	16.85	5.95	14	18.89	7.13	0.83
Mild	3	34.83	26.38	4	1.60	14.62	0.29
Moderate	12	16.08	4.73	8	21.94	8.76	0.53
Severe	2	−5.51	16.22	2	41.31	7.65	0.12
Moderate and severe combined	14	12.99	4.85	10	25.81	7.47	0.15

^at tests