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Table 4 Occurrence rate of adverse events in the active-acupuncture and placebo-acupuncture groups

From: Effect of transcutaneous electrical acupoint stimulation combined with palonosetron on chemotherapy-induced nausea and vomiting: a single-blind, randomized, controlled trial

  Occurrence rate [cases (%)]  
Adverse event Placebo-acupuncture group Active-acupuncture group P
Constipation 10 (14.2) 8 (11.1) 0.570
Headache 4 (5.7) 5 (6.9) 1.000
Mild tingling or redness of the contact part of the skin 0 (0) 2 (2.8) 0.497