Archived Comments for:
A randomised controlled trial to assess the effectiveness of offering study results as an incentive to increase response rates to postal questionnaires [ISRCTN26118436]
Since the paper has been published the authors have noted that there is a typographical error in figure one. The words 'intervention' and 'control' have accidentally been put in the wrong box. It should read allocated to control (n=250) allocated to intervention (n=788).
Correction to typographical error in figure 1
18 October 2010
Since the paper has been published the authors have noted that there is a typographical error in figure one. The words 'intervention' and 'control' have accidentally been put in the wrong box. It should read allocated to control (n=250) allocated to intervention (n=788).
Competing interests
None.