Table 4.

Patient global impression of change (PGIC) results.

	3-mo		6-mo		9-mo		12-mo
	DTM SCS	Conv-SCS	DTM SCS	Conv-SCS	DTM SCS	Conv-SCS	DTM SCS	Conv-SCS
Very much improved	23 (52.3%)	8 (26.7%)	26 (65.0%)	9 (31.0%)	24 (44.4%)	4 (28.6%)	30 (56.6%)	7 (50.0%)
Much improved	17 (38.6%)	14 (46.7%)	9 (22.5%)	10 (34.5%)	24 (44.4%)	7 (50.0%)	17 (32.1%)	5 (35.7%)
Minimally improved	2 (4.5%)	6 (20.0%)	3 (7.5%)	6 (20.7%)	4 (7.4%)	2 (14.3%)	3 (5.7%)	2 (14.3%)
No change	1 (2.3%)	2 (6.7%)	1 (2.5%)	3 (10.3%)	0 (0.0%)	0 (0.0%)	2 (3.8%)	0 (0.0%)
Minimally worse	1 (2.3%)	0 (0.0%)	1 (2.5%)	0 (0.0%)	2 (3.7%)	0 (0.0%)	1 (1.9%)	0 (0.0%)
Much worse	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (3.4%)	0 (0.0%)	1 (7.1%)	0 (0.0%)	0 (0.0%)
Very much worse	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)