Table 4.

Analysis of shortwave therapy treatment for KOA.

Test subjects	Research design	Results
23 patients with KOA[32]	Direct observation method	Overall efficacy rate of 86.96%
80 patients with KOA[33]	Controlled experiment	Treatment group efficacy rate of 75% is higher than the control group
60 patients with KOA[34]	Treatment combined with acupuncture	Combined group effect > Shortwave group
76 patients with KOA[35]	Controlled experiment	Overall efficacy rate of 86.8%

KOA = knee osteoarthritis.