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

Table 2

Independent t-test for CMS for Groups TPRF and TENS.

Time	Levene test		t-test			Observed power
	F	Sig.	T	value
Before treatment	0.491	0.487			0.010	0.105
After treatment	7.871	0.007	4.844	0.000	0.328	0.997
1 w follow-up	0.541	0.466			0.205	0.931
1 m follow-up	0.227	0.636			0.204	0.931
3 m follow-up	0.069	0.794			0.173	0.873

; ; w = week and m = month.