This article corrects:

  1. Transfers of women planning birth in midwifery units: data from the Birthplace prospective cohort study Volume 119, Issue 9, 1081–1090, Article first published online: 18 June 2012

In the following article[1] an error appeared in the text within the paragraph ‘Transfer rates and reasons for transfer’. The abbreviations FMUs and AMUs were transposed. The sentence should have read: In FMUs, 21% (95% CI, 19.2–23.2) of women were transferred, compared with 27% (95% CI, 24.6–29.1) in AMUs.