The effect of evening primrose oil on cervical ripening and birth outcomes: A systematic review and meta-analysis.

ABSTRACT:

Background and purpose

The results of various studies on the effect of evening primrose oil (EPO) on cervical ripening are controversial. The purpose of this systematic review and meta-analysis was to assess the effect of EPO on cervical ripening and birth outcomes.

Materials and methods

The Cochrane Library, Embase, PubMed, Scopus, Web of Science and Persian databases were searched for studies published from the inception of the databases up to February 2021 (search updated in May 2022). Full-text articles published in English or other languages, randomized controlled trials, and quasi experimental studies with control group were included. Studies published in form of conference proceedings, and those whose full texts were not available, as well as studies with control grou

SUBMITTER: Shahinfar S 

PROVIDER: S-EPMC9947258 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature