RAPiD trial design.

<p>Description of interventions: Audit and feedback—a line graph plotting an individual dentist’s monthly antibiotic prescribing rate. Written behaviour change message—text added below the individualised line graph synthesising and reiterating national guidance recommendations for antibiotic prescribing. HB comparator—addition of a line to the individualised line graph plotting the monthly antibiotic prescribing rate of all dentists in that dentist’s health board. 0, 6 months—allocated intervention delivered at months 0 and 6. 0, 6, 9 months—allocated intervention delivered at months 0, 6, and 9.</p

Dentist level baseline information—control versus intervention.

<p>Dentist level baseline information—control versus intervention.</p

Practice and dentist flow diagram.

<p>Abbreviations: A&F—audit and feedback comprising a line graph plotting an individual dentist’s monthly antibiotic prescribing rate. BCM—written behaviour change message comprising text added below a dentist’s individualised line graph synthesising and reiterating national guidance recommendations for antibiotic prescribing. HB—health board comparator comprising addition of a line to the individualised line graph plotting the monthly antibiotic prescribing rate of all dentists in that dentist’s health board. 0,6—allocated intervention delivered at months 0 and 6. 0,6,9—allocated intervention delivered at months 0, 6, and 9. Trial Comparisons: Groups 1,2,3,4 versus Groups 5,6,7,8 test the written behaviour change message main effect. Groups 1,3,5,7 versus Groups 2,4,6,8 test the health board comparator main effect. Groups 1,2,5,6 versus Groups 3,4,7,8 test the frequency of feedback main effect. Dentists without both baseline and follow-up data were not included in the analyses (control <i>n</i> = 114; intervention <i>n</i> = 469). Practices without at least one dentist with both baseline and follow-up data were not included in the analysis (control <i>n</i> = 6; intervention <i>n</i> = 19).</p

Summary results for secondary outcome prescribing rates.

<p>Summary results for secondary outcome prescribing rates.</p

Summary results of all item antibiotic prescribing rates (primary outcome).

<p>Summary results of all item antibiotic prescribing rates (primary outcome).</p

Summary results for secondary outcome prescribing rates.

<p>Summary results for secondary outcome prescribing rates.</p

Additional file 1: of Systematic Techniques to Enhance rEtention in Randomised controlled trials: the STEER study protocol

SPIRIT 2013 Checklist completed for STEER Protocol. (DOC 120 kb