Intended for healthcare professionals

Letters Sharing raw data

All BMJ research papers should share their analytic code

BMJ 2016; 352 doi: (Published 18 February 2016) Cite this as: BMJ 2016;352:i886
  1. Ben Goldacre, senior clinical research fellow
  1. Centre for Evidence Based Medicine, Department of Primary Care Health Sciences, University of Oxford, Oxford OX2 6GG, UK
  1. ben{at}

Freemantle and colleagues reject calls for them to share raw data from their controversial paper, citing privacy issues around individual patients’ records.1 2 They also note that large numbers of other researchers have access to the same electronic health record data they used (hospital episode statistics; HES).

This raises an important problem, often neglected in discussions on scientific transparency: the …

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