Does Electroacupuncture Treatment Reduce Pain and Change Quantitative Sensory Testing Responses in Patients with Chronic Nonspecific Low Back Pain? A Randomized Controlled Clinical Trial

Table 1

Sample characterization. BMI: Body Mass Index. CTR: control group. Data expressed as mean and standard error of the mean. p>0.05 in all comparisons. Kruskal-Wallis test for noncategoric variables and qui-square test for categoric.

Demographic characteristics	Electroacupuncture	CTR 1	CTR 2	CTR 3
Age (years)	42.35±3.35	41.82±3.34	48.72±3.61	52.58±3.65
Weight (kg)	71.73±2.22	72.80±2.35	76.56±2.64	79.08±3.10
Height (m)	1.67±0.02	1.68±0.02	1.66±0.02	1.68±0.03
BMI (kg/m^2)	25.62±0.79	25.82±0.78	27.75±0.99	27.97±0.76
Sex ()
Female	10 (58.8%)	9 (52.9%)	10 (55.5%)	9 (52.9%)
Male	7 (41.2%)	8 (47.1%)	8 (44.5%)	8 (47.1%)
Occupation ()
Long sitting	6 (35.2%)	6 (35.2%)	4 (22.2%)	5 (29.4%)
Long standing	9 (52.9%)	9 (52.9%)	11 (61,1%)	8 (47.0%)
Retiree	2 (11.9%)	2 (11.9%)	3 (16.7%)	4 (23.6%)
Physical activity ()
Yes	10 (58.8%)	8 (47.1%)	10 (55.5%)	10 (58.8%)
No	7 (41.20%)	9 (52.9%)	8 (44.5%)	7 (41.2%)
Smoking ()
Yes	0 (0%)	1 (5.9%)	0 (0%)	0 (0%)
No	17 (100%)	16 (94.1%)	18 (100%)	17 (100%)
Alcohol consumption ()
Yes	4 (23.5%)	6 (35.3%)	3 (16.7%)	4 (23.6%)
No	13 (76.5%)	11 (64.7%)	15 (83.3%)	13 (76.4%)