Two Transcutaneous Stimulation Techniques in Shoulder Pain: Transcutaneous Pulsed Radiofrequency (TPRF) versus Transcutaneous Electrical Nerve Stimulation (TENS): A Comparative Pilot Study

Table 3

PEG score differences: ANOVA and Scheffe’s post hoc analysis.

Timing	ANOVA	Post hoc F = 4.62 sig 0.005; ω^2 = 0.13 (observed power 0.88)
After 1 course	11.80 + 8.88	Group diff	value
1 week later	6.07 + 7.04	5.73 + 2.16	0.077
1 month later	5.27 + 7.68	6.53 + 2.16	0.032
3 months later	4.67 + 6.77	7.13 + 2.16	0.016

and .