All authors have completed the ICMJE uniform disclosure form (www.icmje.org/
coi_disclosure.pdf; available on request from the corresponding author). PC, DR and
PS were employees of MEND Central during the project, and PC and PS were also
shareholders in MEND Central, PC and PS were two of the developers of the MEND
7–13 intervention. Given that results from the project might support, threaten or
have no effect on MEND Central’s success, our grant application to NIHR and
subsequent protocol (http://www.nets.nihr.ac.uk/projects/phr/09300505) set out
governance measures to ensure that competing interests, and the interests of
project stakeholders, were managed appropriately. As part of these measures, PC, PS
and DR had no access to data and no role in analyses