Table 2.

VAS scores before and after treatment in both groups

	Continuous SWD (n= 11)	Pulsed SWD (n= 16)	Total (n= 27)	P (between groups)	Between group Cohen’s d
Pretreatment VAS for pain (mm) Mean±SD Median; min- max	77.3±20.0 80; 50-100	75.0±21.6 80; 40-100	75.9±20.6 80; 40-100	0.839
Post treatment VAS for pain (mm) Mean±SD Median; min- max	40.00±27.9 40; 0-100	43.8±26.2 50; 0-90	42.2±26.5 50; 0-100	0.600	0.141
1 month post treatment VAS for pain (mm) Mean±SD Median; min- max	49.1±28.9 50; 10-100	49.1±28.9 50; 0-100	49.1±28.3 50; 0-100	0.980	0
P within groups	0.058	0.003	0.000

See table 1 for abbreviations

VAS score for pain (range 0-100mm, MCII -19.9mm)

Cohen’s d 0.2= small effect size

Cohen’s d 0.5= medium effect size

Cohen’s d 0.8= large effect size