Table 3.

Average weekly changes in outcome measures^*

	Average weekly change (95% CI)		P value
	Sham device	Placebo pill
Pain (10 point scale)	−0.33 (−0.40 to −0.26)	−0.15 (−0.21 to −0.09)	<0.001
Symptoms (Levine)	−0.07 (−0.09 to −0.05)	−0.05 (−0.06 to −0.03)	0.02
UEFS (Pransky)	−0.73 (−1.10 to −0.37)	−0.59 (−0.88 to −0.30)	0.54
Grip strength (kg)	0.04 (−0.21 to 0.28)	0.05 (−0.15 to 0.24)	0.92

UEFS=upper extremity function scale.

^*Based on longitudinal regression analysis and generalised estimating equations, last value carried forward for missing data. Reported values are estimated coefficients for study week in model (that is, slope over time).