Table 2.

Baseline survey score for pain and fatigue responders and non-responders. Data are presented as mean (SD), median (IQR=25^th-75^th percentile), or percent of the sample.

	Pain			Fatigue
	Responder (≥30%) n=45	Non-responder n=58	p-value	Responder (≥20%) n=46	Non-responder n=57	p-value
Pain
Pre-TENS movement pain or fatigue (0–10)	7 (6–8)	7 (5–8)	0.95	7.5 (6–8)	7 (5–8)	0.16
Initial TENS response to pain or fatigue (% change)	−25 (−33 to −12)	−12 (−22 to 0)	0.006	−18 (−29 to −11)	0 (−20 to 0)	0.004
BPI Intensity (0–10)	5.9 (1.4)	5.8 (1.4)	0.77	5.8 (1.4)	5.9 (1.4)	0.71
BPI Interference (0–10)	6.3 (1.8)	6.7 (1.9)	0.23	6.2 (1.5)	6.6 (2.0)	0.68
Fatigue
MAF GFI (1–50)	38.3 (32.0–41.8)	39.8 (34.7–44.1)	0.16	38.9 (32.7–41.8)	39.6 (33.4–44.1)	0.25
IPAQ Physical activity level
Low	18 (40%)	27 (47%)	0.70	22 (48%)	23 (40%)	0.29
Moderate	15 (33%)	15 (26%)		15 (33%)	15 (26%)
High	12 (27%)	16 (28%)		9 (20%)	19 (33%)
Psychosocial Measures
PCS (0–52)	24.0 (12.5)	22.4 (13.5)	0.55	24.5 (13.2)	21.9 (12.9)	0.33
PSEQ (0–60)	31 (21–37)	29 (14–36)	0.33	27.2 (12.8)	29.1 (13.7)	0.48
TSK (17–68)	35.3 (7.3)	37.4 (7.9)	0.17	36.8 (7.5)	36.2 (7.9)	0.71
Disease State and Quality of Life
FIQR (0–100)	56.4 (16.6)	61.4 (16.8)	0.14	57.0 (16.6)	61.0 (16.9)	0.23
SF-36 MCS (0–100)	38.8 (10.4)	38.6 (9.7)	0.92	40.6 (10.3)	37.1 (9.5)	0.076
SF-36 PCS (0–100)	33.8 (5.9)	31.7 (6.7)	0.10	31.9 (6.0)	33.3 (6.7)	0.25
PROMIS T-score
Anxiety	58.9 (9.1)	58.7 (8.5)	0.90	58.7 (8.7)	58.9 (8.8)	0.89
Depression	57.5 (8.7)	58.5 (7.7)	0.57	58.6 (8.1)	57.6 (8.1)	0.57
Satisfaction in Social Participation	43.4 (7.4)	41.4 (5.8)	0.13	42.5 (7.3)	42.2 (6.0	0.82
Satisfaction in Social Roles	38.9 (6.4)	38.3 (6.7)	0.65	38.9 (7.0)	38.3 (6.2)	0.64
Sleep disturbance	62.0 (9.0)	61.6 (8.0)	0.83	61.3 (8.1)	62.2 (8.8)	0.60
Sleep impairment	63.0 (7.1)	64.9 (7.7)	0.20	62.3 (7.3)	65.5 (7.4)	0.029