Footnotes

• Collaborators The Scottish Paediatric Society committee members include Christine Findlay, Iain Laing, Mairi Stark, Peter Fowlie, Robert McWilliam, Lynn Cowie, Christine Gallagher, Jonathan McCormick, Lindsay Ford, Helen Gibson, Ishaq Abu-Arafeh, Lana O'Hara. The support of the Scottish office of the RCPCH (in particular Claire) was much appreciated.

• Contributors ST conceived the study, executed it, analysed the results and wrote the first draft. The paper was shared with members of the Scottish Paediatric Society committee (named in acknowledgements) who passed comments.

• Competing interests None.

• Provenance and peer review Not commissioned; internally peer reviewed.

• Data sharing statement Please contact Dr Turner (s.w.turner@abdn.ac.uk) for access to original data.