Reply from dissenting author

EDITOR,—As a former chairman of the voluntary organisation Tak Tent, which provided support in June M C McArdle and colleagues' study, and as an author of the paper, I wish to respond to the comments with a different perspective from that of my coauthors.

I share the concern expressed by Claire Foster in her commentary on our paper1 and by Heather Goodare about the lack of informed consent. It was argued in the study that such consent would introduce bias. Yet, as …