Table 5. Comparison of pain intensity changes in the two groups of exercise therapy and electroacupuncture.

Thickness after Anserina	Exercise therapy group (N=31)	Electric Acupuncture Group (N=30)	P-value (Comparison between groups)
First Visit	8.8 ± 1.0	9.0 ± 1.0	0.382
One month after the intervention	6.8±1.0	3.8±1.7	<0.001
Changes since the first visit	-1.8 (-1.2; -2.5)	-5.3 (-4.6; -5.9)	<0.001
P-value (intragroup comparison)	<0.001	<0.001
Two months after the intervention	6.4±1.4	3.1±1.5	<0.001
Changes since the first visit	-2.4 (-1.7; -3.1)	-6.0 (-5.3; -6.7)	<0.001
P-value (intragroup comparison)	<0.001	<0.001
Changes compared to the first month	-0.6 (-0.02; -1.1)	-0.7 (-0.1; -1.3)	0.321
P-value (intragroup comparison)	0.036	0.008
Three months after the intervention	5.4±1.7	2.1±1.5	<0.001
changes from the first visit	-3.4 (-2.7; -4.2)	-6.4 (-5.7; -7.2)	<0.001
P-value (intragroup comparison)	<0.001	<0.001
Changes compared to the first month	-1.6 (-0.9; -2.3)	-1.2 (-0.4; -1.9)	0.558
P-value (intragroup comparison)	<0.001	<0.001
Changes compared to the second month	-1.0 (-0.4; -1.6)	-0.5 (-1.0; -0.1)	0.803
P-value (intragroup comparison)	<0.001	0.165