From: Effect of acupuncture on Deqi traits and pain intensity in primary dysmenorrhea: analysis of data from a larger randomized controlled trial
Group
N
Pre-acu
Post-acu
*P
SP6 acupuncture group
23
54.26 ± 2.312
31.96 ± 3.082
0.000
GB39 control group
26
55.42 ± 1.842
36.58 ± 3.358
Nonacupoint control group
11
55.09 ± 3.755
30.00 ± 4.143
□P
0.928
0.419