Effects and mechanisms of acupuncture and electroacupuncture for functional dyspepsia: A systematic review

Figure 1 Preferred reporting items for systematic reviews and meta-analyses flow diagram. FD: Functional dyspepsia; RCT: Randomized controlled trial.

Figure 2 Numbers of detecting items for mechanism research, scales of dyspeptic symptoms, and scales of quality of life of acupuncture and electroacupuncture in treating functional dyspepsia. A: Numbers of detecting items for mechanism research; B: Numbers of detecting items for scales of dyspeptic symptoms; C: Numbers of detecting items for scales of quality of life. FD-QOL: Functional dyspepsia-related quality of life; GCSI: Gastroparesis cardinal symptom index; GI hormones: Gastrointestinal hormones; LDQ: Leeds dyspepsia questionnaire; NDI: Nepean dyspepsia index; QOL: Quality of life; SF-36: Short form 36 health survey questionnaires; SID: Symptom index of dyspepsia.

Figure 3 Risk of bias graph and summary of included studies. A: Risk of bias graph of included studies; B: Risk of bias of included studies.