Table 2. Two sample t-tests of KOOS subscale changes (post-treatment – pre-treatment) across three groups.

Items	P value, High dose acu vs low dose acu	P value, High dose acu vs sham acu	P value, Low dose acu vs sham acu
KOOS pain	0.9	0.07	0.04
KOOS daily living	0.34	0.26	0.06
KOOS symptoms	0.26	0.71	0.13
KOOS sport	0.99	0.11	0.07
KOOS quality of life	1.0	0.11	0.06