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Table 1 Characteristics of included studies

From: Symptom effects and central mechanism of acupuncture in patients with functional gastrointestinal disorders: a systematic review based on fMRI studies

Reference

Language

Country

Diagnostic criteria

Sample size(T:C)

fMRI Sample size(T:C)

Sex ratio (male: female)

Interventions

Duration and frequency

Clinical outcomes

T

C

FD

SUN R etal,2021 [21]

English

China

Rome III

64(33:31)

41(21:20)

64(8:56)

MA(CV12, ST36, deqi)

SA(CV12, ST36, without deqi)

T&C:once a day, five times per week, for 4 weeks

NDSI, SAS, SDS

Zhou2020: Chen etal,2021 [23]

Chinese

China

Rome IV

54(26:28)

54(26:28)

54(13:41)

taVNS(In the concha cavity)

sham-taVNS(upper ear navicular)

T&C:15 min, twice per day, for 2 weeks

overall symptoms of FD, NDI, HAMA, HAMD, SAS, SDS

Li etal,2021 [25]

English

China

Rome IV

56(29:27)

56(29:27)

56(32:24)

MA(ST36)

MOX(ST36)

T&C:once a day, five times per week, for 4 weeks

NR

Sun etal,2021 [26]

English

China

Rome III

32(16:16)

32(16:16)

32(6:26)

MA(CV12, ST36, deqi)

SA(CV12, ST36, without deqi)

T&C:once a day, five times per week for 4 weeks

NDSI, NDI-QOL, SAS, SDS

IBS

Zhao etal, 2018 [27]

English

China

Rome III

60(30:30)

60(30:30)

NR

EA(ST25,ST37)

Mox(ST25,ST37)

T&C:30 min each time, 6 times per week,for 4 weeks

VAS, HAMA, HAMD

Chu etal,2012 [28]

English

China

Rome III

30(15:15)

30(15:15)

30(15:15)

EA(ST36,ST37,SP6)

SA(ST36,ST37,SP6;The needle tips were hidden inside foam cubes)

30 min

NR

Zhao etal, 2015 [29]

English

China

Rome III

60(30:30)

15(7:8)

NR

EA(ST25,ST37)

Mox(ST25,ST37)

T&C:30 min each time, 6 times per week,for 4 weeks

VAS-IBS, HAMA, HAMD

FC

Chen, 2020 [30]

Chinese

China

Rome IV

34(17:17)

34(17:17)

34(1:33)

EA(ST36,ST37,ST25)

PEG

T:once a day, five times per week for 2 weeks; C:once a day, once a packet for 10 g, five times per week for 2 weeks

PAC-SYM, SAS, SDS

Hou, 2020 [31]

Chinese

China

Rome IV

34(17:17)

34(17:17)

34(3:31)

EA(ST36,ST37,ST25)

WT

T:once a day, five times per week for 2 weeks

PAC-SYM, PAC-QOL, SAS, SDS

Ma, 2021 [32]

Chinese

China

Rome IV

50(32:18)

50(32:18)

50(45:5)

MA(ST25, ST36, ST37, non-acupoints)

WT

T:once a day, five times per week for 2 weeks

PAC-SYM, PAC-QOL

  1. taVNS transcutaneous auricular vagus nerve stimulation, sham-taVNS auricular acupoints with non-vagus nerve, MA manual acupuncture, MOX moxibustion, EA Electroacupuncture, SA sham acupuncture, WT waiting treatment, PEG Polyethylene glycol, CV12 Zhongwan, ST36 Zusanli, ST25 Tianshu, ST37 Shangjuxu, SP6 Sanyinjiao