After the treatment , the total effective rate was 87.5 % ( 28/32 ) in the syndrome-differentiation acupuncture group , which was superior to 74.2 % ( 23/31 ) in the regular acupuncture group and 20.7 % ( 6/29 ) in the non-acupoint group ( P < 0.05 , P < 0.01 ) .