Skip to main content

Table 1 Characteristics of the studies included in this review

From: The effects of acupuncture on pregnancy outcomes of in vitro fertilization: a systematic review and meta-analysis

Study

Country

Main objective

Acupuncture location

No. randomised

Acupuncture sessions

Acupuncture type

De qi sensation

Controla

IVF outcomes

Andersen 2010 [65]

Denmark

IVF outcome

On-site

635

Two sessions: (1) 30 m before ET; (2) immediately after ET (n = 314)

MA

Yes

The Streitberger placebo needlesb placed on the same acupoints which the true acupuncture used (n = 321)

BPR、CPR、OPR、LBR、MR、IR

Arnoldi 2010 [18]

Italy

IVF outcome

On-site

204

Three sessions: (1) d 5 of ovarian stimulation; (2) 30 m before ET; (3) immediately after ET (n = 102)

MA

Yes

No adjuvant treatment (n = 102)

CPR、LBR、MR、IR

Craig 2014 [59]

USA

IVF outcome

Off-site

113

Two sessions: (1) within 1–2 h before ET; (2) within 1–2 h after ET (n = 57)

MA

Yes

No adjuvant treatment (n = 56)

BPR、CPR、LBR、MR

Dieterle 2006 [15]

Germany

IVF outcome

On-site

225

Two sessions: (1) immediately after ET; (2) 3 days after ET (n = 116)

MA

Yes

Needles inserted in real acupoints which were designed not to influence fertility (n = 109)

BPR、CPR、OPR、LBR、MR、IR

Domar 2009 [29]

USA

IVF outcome

On-site

150

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 78)d

MA

Unclear

No adjuvant treatment (n = 68)d

BPR、CPR

Feliciani 2011 [62]

Italy

IVF outcome

On-site

46

Three sessions: (1) 5–7d before OA; (2) 2–3 d before OA; (3) within 1 h after ET (n = 23)

MA

Yes

No adjuvant treatment (n = 23)

CPR、OPR、LBR、MR、IR

Gillerman 2016 [58]

UK

IVF outcome

On-site

127

Three sessions: (1) between days 6 and 8 of ovarian stimulation; (2) before egg retrieval; (3) before and after embryo transfer (n = 67)

MA

Yes

No adjuvant treatment (n = 60)

CPR

Ho 2009 [17]

Taiwan

IVF outcome

On-site

56

Four sessions: twice a week for 2 weeks, from d2 to the day before oocyte retrieval (n = 30)

EA

Yes

No adjuvant treatment (n = 26)j

CPR

Humaidan 2004 [69]

Denmark

Pain-relieving effect

On-site

200

One session: a few minutes before OA and terminated directly after OA (n = 75)

EA

No

Alfentanil + PCB (n = 100)

BPR、CPR

Villahermosa 2012 [20]

Brazil

anxiety-relieving efffects

On-site

43

Four sessions: once a week over a 4-week period, comprised the whole IVF process from induction of ovulation to the result of β-human chorionic gonadotrophin, the last treatment was given after embryo transfer (n = 22)

MA

Yes

Needles inserted in the sites which close to but not on (n = 21)

CPR

Villahermosa 2013 [21]

Brazil

IVF outcome

On-site

84

Four sessions: (1)D1 (first day of ovulation induction); (2)D7 (seventh day of ovulation induction); (3)on the day before the day of ovarian puncture; (4)on the day after the day of embryo transfer (n = 28)

MA

Yes

Needles inserted in the arm and thigh, which are known not to correspond with classically described acupuncture points (n = 46)

BPR、CPR

Madaschi 2010 [64]

Brazil

IVF outcome

On-site

455g

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 230)

MA

Yes

No adjuvant treatment (n = 225)

CPR、LBR、MR、IR

Morin 2017 [59]

USA

IVF outcome

On-site

424

Two sessions: (1) 25 m before ET; (2) after ET (n = 210)e

MA

Unclear

No adjuvant treatment (n = 210)f

BPR、CPR、OPR、LBR、MR、IR

Moy 2011 [61]

USA

IVF outcome

On-site

161

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 87)

MA

Yes

Needles inserted in the sites which close to, but not on, the real acupoints (n = 74)

BPR、CPR

Omodei 2010 [19]

Italy

IVF outcome

On-site

168h

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 44)h

MA

Unclear

No adjuvant treatment (n = 124)h

CPR、OPR、LBR、MR

Paulus 2002 [14]

Germany

IVF outcome

On-site

160

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 80)

MA

Yes

No adjuvant treatment (n = 80)

CPR、OPR、LBR、MR

Paulus 2003 [71]

Germany

IVF outcome

On-site

200

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 100)

MA

Yes

The Streitberger placebo needlesb placed on the same acupoints which the true acupuncture used (n = 100)

CPR、OPR、LBR、MR

Peyvandi 2016 [22]

Iran

IVF and FET outcomes

On-site

164

Three sessions: (1)oocyte puncture day; (2)2 days after puncture; (3)one cycle before embryo transfer (n = 82)

EA

No

No adjuvant treatment (n = 82)

BPR、CPR、OPR

Rashidi 2013 [60]

Iran

IVF outcome

On-site

62

Five sessions: (1)30 m on the 21st day of the previous cycle (start of downregulation);

(2) the first day of stimulation; (3)2 days before OPU; (4) 30 m before ET; (5) immediately after ET (n = 31)

EA

Yes

No adjuvant treatment (n = 31)

BPR、CPR、OPR

Sator-K 2006 [68]

Australia

Pain-relieving effect

On-site

94

One session:30 m before OA and lasted until 1 h after OA (n = 64)i

EA/MA

No

PCA + an adhesive tape over the whole ear connected to the P-Stim™ without electrical stimulation (n = 30)

CPR

Smith 2006 [67]

Australia

IVF outcome

On-site

228

Three sessions: (1) d9 of stimulating injections; (2)25 m before ET; (3) immediately after ET (n = 110)

MA

Yes

The Streitberger placebo needlesb placed close to but not on the real acupuncture points (n = 118)

CPR、OPR

Smith 2018 [56]

Australia and New Zealand

IVF outcome

On-site at the IVF centers or nearby

848

Three sessions: (1) between d6 and d8 of ovarian stimulation; (2) 1 h before ET; (3) immediately after ET (n = 424)k

MA

Yes

Park sham needlesc placed away from known acupuncture points (n = 424)k

 

So 2009 [66]

Hong Kong

IVF outcome

On-site

370

Two sessions: (1) 25 m before ET; (2) immediately after ET (n = 185)

MA

Yes

The Streitberger placebo needlesb placed on the same acupoints which the true acupuncture used to give patients a pricking, penetrating sensation (n = 185)

BPR、CPR、OPR、LBR、MR、IR

So 2010 [63]

Hong Kong

FET outcome

On-site

226

One session: immediately after ET (n = 113)

MA

Yes

The Streitberger placebo needlesb placed on the same acupoints which the true acupuncture used to give patients a pricking, penetrating sensation (n = 113)

BPR、CPR、OPR、LBR、MR、IR

Stener-Victorin 1999 [72]

Sweden

Pain-relieving effect

On-site

150

One session: 30 m before OA and terminated directly after OA (n = 75)

EA

Yes

Alfentanil + PCB (n = 75)

CPR、LBR、MR、IR

Stener-Victorin 2003 [70]

Sweden

IVF outcome

On-site

286

One session: 30 m before OA and terminated directly after OA (n = 141)

EA

Yes

Alfentanil + PCB (n = 145)

CPR、OPR、IR

Westergaard 2006 [16]

Denmark

IVF outcome

On-site

300

Acupuncture group 1:Two sessions: (1)25 m before ET; (2)immediatelyafter ET (n = 100); Acupuncture group 2: Three sessions: (1) 25 m before ET; (2)immediately after ET; (3) 2 d after ET (n = 100)i

MA

Yes

No adjuvant treatment (n = 100)

BPR、CPR、OPR、LBR、MR、IR

  1. Note:Acupoints Acupuncture points, OA oocyte aspiration, ET embryo transfer, COH controlled ovarian hyperstimulation, MA manual acupuncture, EA electro acupuncture, d day, h hour, m minute, BPR biochemical pregnancy rate, CPR clinical pregnancy rate, OPR ongoing pregnancy rate, LBR live birth rate, MR miscarriage rate
  2. aFor all sham-controlled trials, the sham acupuncture procedure was given on the same schedule as that used for the true acupuncture group
  3. bThe tip of the Streitberger placebo needle is blunted, skin penetration did not occur
  4. cPark sham needle has a retractable needle shaft and a blunt tip
  5. dThe treatment assignment and the outcomes for 4/150 randomized participants were not recorded by the trial authors
  6. eThere are two invention groups in the trial:needle acupuncture (AC) and laser acupuncture (LZ AC),and our meta-analysis only included the AC group
  7. fThere are three control groups in the trial:sham laser acupuncture (LZ sham), relaxation (RX) and no treatment (NT),and our meta-analysis only included the NT group
  8. gThe 39 participants (22 acupuncture; 17 control) who did not proceed to embryo transfer were excluded from the trial authors’ analysis (Manheimer, et al., 2013). Our meta-analysis was to re-include these participants and assumed the these participants failure to achieve the clinical pregnancy outcome
  9. hThe number of each group were not available from the publishing information, but other review reported it (Manheimer, et al., 2013)
  10. iThere are two intervention arms in the trial, and we combined them together for the meta-analysis
  11. j8/26 patients in the control group excluded from the study (cancel to participate further after randomization)
  12. k9/424 in acupuncture group and 15/424 in control group excluded from analysis (withdrawal consent for data to be used)