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. 2013 Feb 5;346:e8707. doi: 10.1136/bmj.e8707

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© Ramsden et al 2013

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode.

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graphic file with name ramc007634.f1_default.jpg — Fig 1 Trial profile. An intention to treat analysis included all randomized participants. Participant exclusion data from before randomization were not recovered. Numbers lost to follow-up were comparable in the two groups; reasons for dropout were not recovered