Acupuncture transcutaneous electrical nerve stimulation reduces discomfort associated with barostat-induced rectal distension: A randomized-controlled study

Table 2 Number of subjects in the transcutaneous electrical nerve stimulation over acupuncture points and placebo transcutaneous electrical nerve stimulation over acupuncture points groups identified with colonic polyps during the colonoscopy screening procedure

Location of polyps	Acu-TENS group(n = 20)	PA group(n = 20)
Right side (caecum, ascending colon, hepatic flexure, transverse colon)	4	3
Left side (splenic flexure, descending colon, sigmoid)	1	1
Rectosigmoid junction	0	0
Rectum	0	0
No abnormality	15	16

Acu-TENS: Transcutaneous electrical nerve stimulation over acupuncture points; PA: Placebo transcutaneous electrical nerve stimulation over acupuncture points.