Correction to: BMC Pregnancy Childbirth (2020) 20:74

https://doi.org/10.1186/s12884-020-2741-5

Following publication of the original article [1], we have been notified by the author that the age of women from the Result section was incorrectly tagged as references.

The references tag for the age of women from the Result section has been removed.

The original article has been corrected.