Evaluation of the Immediate Effect of Auricular Acupuncture on Pain and Electromyographic Activity of the Upper Trapezius Muscle in Patients with Nonspecific Neck Pain: A Randomized, Single-Blinded, Sham-Controlled, Crossover Study

Table 2

Mean and standard deviation (±SD) of pain intensity obtained by the NRS.

Treatment	Before	After	Mean difference	p value
AA	4.25 ± 1.13	2.25 ± 0.97	2.00 ± 0.16
SAA	4.00 ± 0.73	2.33 ± 1.07	1.67 ± 0.34

AA: auricular acupuncture treatment. SAA: sham auricular acupuncture treatment.
-test (post hoc test).