Post-submission changes to prespecified statistical analysis plans

Affiliations

• ¹ The BMJ.
• ² Faculty of Medicine, University of Southampton, Southampton, UK.
• ³ UCL Great Ormond Street Institute of Child Health, University College London, London, UK.
• ⁴ Yale School of Medicine, Yale University, New Haven, CT, USA.
• ⁵ Gillings School of Global Public Health, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA.
• ⁶ The BMJ eloder@bmj.com.
• ⁷ Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.