| Study | Reason for exclusion |
|---|---|
| Abdollahi 2020 | Not our population of interest. Participants’ mean W‐DEQ A score prior to intervention was 56; therefore, ineligible for our review |
| Ahmadi 2017 | Population of interest did not have high or severe FOC. After discussion, ruled out since 28 was considered high fear on the Childbirth Attitudes Questionnaire (CAQ). The CAQ has a range from 14 to 56. |
| Andaroon 2017 | Not our population of interest. Women scored 34 to 84 on W‐DEQ A. |
| Bergstrom 2009 | Not our population of interest. Participants did not have fear of childbirth. |
| Bittner 2014 | Not our population of interest. Participants had anxiety, stress and depression. Fear of childbirth was not assessed. |
| Boryri 2019 | Quasi‐randomised design |
| Cankaya 2020 | Not our population of interest. Participants did not have fear of childbirth. |
| ChiCTR1900025309 | Quasi‐experimental design |
| CTRI/2019/11/021950 | Quasi‐experimental design |
| Downe 2015 | Not our population of interest. Participants did not have fear of childbirth. |
| Duncan 2017 | Not our population of interest. Participants did not have fear of childbirth. |
| Ghazaie 2016 | Not our population of interest. Participants did not have fear of childbirth. |
| Gonenc 2020 | Not our population of interest. Participants did not have fear of childbirth. |
| Haapio 2017 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT20110228005931N5 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT20120215009014N317 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT201312073034N13 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT20150608022609N6 | Not our population of interest. Participants were fathers. |
| IRCT2015120625399N1 | Not our population of interest. Participants did not have fear of childbirth. Results not published, only registration. CAQ > 28 for inclusion in study. |
| IRCT2016060828352N1 | Quasi‐experimental design |
| IRCT20160625028630N2 | Quasi‐experimental design |
| IRCT2016082429506N1 | Ineligible population: inclusion criteria do not specifiy FOC. |
| IRCT2017030627557N3 | Not our population of interest. Participants did not have high or severe fear of childbirth. Inclusion: W‐DEQ A < 66 |
| IRCT20171026037015N3 | Participants with moderate FOC: W‐DEQ A > 55 |
| IRCT20171129037676N2 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT20171230038133N1 | Quasi‐randomised design |
| IRCT20180131038579N1 | Not our population of interest. Participants did not have fear of childbirth. Ruled out since 28 was considered high fear on the CAQ. The CAQ has a range from 14 to 56. |
| IRCT20180427039436N3 | Non‐randomised trial according to protocol registration. |
| IRCT20180520039729N1 | Not our population of interest. Participants did not have fear of childbirth. |
| IRCT20180721040544N1 | Not our population of interest. Participants did not have fear of childbirth. Ruled out since 28 was considered high fear on the CAQ. The CAQ has a range from 14 to 56. |
| IRCT20190210042672N1 | Non‐randomised trial according to protocol registration |
| IRCT20200122046227N1 | Not our population of interest. Participants did not have fear of childbirth. Inclusion: W‐DEQ A > 38 |
| Irmak 2019 | Not our population of interest. Participants did not have fear of childbirth. |
| Jamali 2018 | Not our population of interest. Participants did not have fear of childbirth. Participants were women "referred for delivery preparation", not women with fear of childbirth. |
| Klabbers 2019 | After data extraction, we realised that it was a cross‐over trial. After discussion between review authors, we excluded it. |
| Lonnberg 2020 | Ineligible population |
| Masoumi 2016 | Not our population of interest. Participants did not have fear of childbirth. |
| Mehrabadi 2020 | Not our population of interest. Participants did not have fear of childbirth. |
| Navaee 2015 | Not our population of interest. Participants did not have fear of childbirth. |
| Nosratabadi 2018 | Not our population of interest. Participants did not have fear of childbirth. |
| NTR4661 | Quasi‐experimental design |
| Sharifzadeh 2018 | Upon translation of this publication, we realised the women had low FOC, and were thus ineligible. |
| Soltani 2017 | Ineligible population: defines FOC as 28 on CAQ, we did not consider this to be high fear as per our protocol. |
| TCTR20190501001 2019 | Not population of interest |
| Vakilian 2018 | Not our population of interest. |
| Veringa 2016 | Quasi‐experimental design |
| Werner 2013 | Not our population of interest. |
| Zarenejad 2020 | Not our population of interest. Participants did not have fear of childbirth. |
CAQ: Childbirth Attitudes Questionnaire