Funding for this research was provided by:
Health Research Board
Text and Data Mining valid from 2018-06-13
First Online: 13 June 2018
Compliance with Ethical Standards
: The authors report no conflict of interest.
: The London Multicentre Research Ethics Committee granted ethical approval for the MCS surveys. Ethical approval for this secondary data analysis was by the Clinical Research Ethics Committee of the Cork teaching hospitals (CREC).