Study concept and design: Doyle, Anderson, Crowther.
Acquisition, analysis, or interpretation of data: Doyle, Anderson, Haslam, Lee, Crowther.
Drafting of the manuscript: Doyle, Anderson.
Critical revision of the manuscript for important intellectual content: Doyle, Anderson, Haslam, Lee, Crowther.
Statistical analysis: Lee.
Obtained funding: Doyle, Anderson, Crowther.
Administrative, technical, or material support: Doyle, Anderson, Haslam, Crowther.
Study supervision: Doyle, Anderson, Haslam.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Group Information: Members of the Australasian Collaborative Trial of Magnesium Sulphate (ACTOMgSO4) Collaborative Group who collaborated to acquire data for the follow-up study were Brian Darlow, MD; Nicola Austin, MBChB, DM (Christchurch Women’s Hospital, Christchurch, New Zealand); Noel French, MBChB; Catherine Campbell, BPsych, MPsych, PhD (King Edward Memorial Hospital for Women, Western Australia); Elizabeth Carse, MBBS; Marie Hayes, RN (Monash Medical Centre, Victoria); Jane Harding; Chris McKinlay, MBChB, PhD; Coila Bevan, BA (National Women’s Hospital, Auckland, New Zealand); Antonio de Paoli, MD (Royal Hobart Hospital, Tasmania); Lee Sutton, MBBS, PhD (Royal Hospital for Women, New South Wales); Ingrid Rieger, MBBS; Crista Wocadlo, PhD (Royal Prince Alfred Hospital, New South Wales); Paul Colditz, MBBS, DPhil; Margo Pritchard, BA, PhD (Royal Women’s Hospital and University of Queensland, Queensland); Peter H. Gray, MD (Mater Mother’s Hospital, Queensland); Andrew Watkins, MD; Gillian Opie, MBBS; Elaine Kelly, MA; Heather Woods, RN (Mercy Hospital for Women, Victoria); Peter J. Anderson, PhD; Catherine Callanan, RN; Noni Davis, MBBS; Lex W. Doyle, MD, MSc; Julianne Duff, BMedSci, MBBS (The Royal Women’s Hospital, Victoria); Phil Weston, MBChB (Waikato Hospital, Hamilton, New Zealand); Caroline Crowther, MD; Ross Haslam, MBBS; Pat Ashwood, BSc, BAppSc (Women’s and Children’s Hospital, South Australia).
Funding/Support: This study was funded by a project grant (350326) from the National Health and Medical Research Council Australia and the Victorian Government’s Operational Infrastructure Support Program.
Role of the Funder/Sponsor: The funding bodies had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.