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Table 1 Presentation of the Likert-type scale

From: Electroacupuncture for the prevention of postoperative gastrointestinal dysfunction in participants undergoing vascular laparotomy under general anesthesia: a randomized controlled trial

Score Explanation
0 I feel no abdominal distension at all
1 I feel a little of abdominal distension
2 I feel abdominal distension but I can bear
3 I feel obvious abdominal distension that I cannot bear but it doesn’t affect my life
4 I feel horrible abdominal distension and need it addressed