Operative vaginal delivery and neonatal and infant adverse outcomes: population based retrospective analysis

We have been alerted to some errors in this paper by Kitaw Demissie and colleagues (3 July, pp 24-6). In the Participants section of the abstract and the opening sentence of the Results section, the published numbers for singleton live births were wrong. The correct figures are 11 463 823 (instead of 11 639 388) for the United States and 374 873 (instead of 556 597) for New Jersey. The authors state that these revisions do not affect any of the results in the table or the conclusion of the paper.