PEP.

Methods	Accrual: August 2007 to May 2008 Muticentre (breast screening units n = 7); UK‐based Parallel group randomised controlled trial using stratified block randomisation (block sizes of three, six and nine). Follow‐up: one month; one year
Participants	Women aged 67 to 70 attending for final routine appointment on the UK NHS Breast Screening programme.
Interventions	Intervention group 1 (n = 287): received a booklet conveying key breast cancer awareness messages, given by a radiographer to each woman who had received her final routine mammogram, in addition to the usual care. Intervention group 2 (n = 294): received a 10‐min one‐to‐one verbal interaction with a radiographer or research psychologist plus booklet plus usual care. Control group (n = 286): received the usual care (women were informed that they were no longer eligible for routine screening, advised to continue to be screened every 3 years on request and given a card with contact details and a suggested date for contact).
Outcomes	Primary Outcomes Knowledge of breast cancer symptoms, knowledge of age‐related risk, confidence to check breasts and overall breast cancer awareness. Breast cancer awareness Women’s breast cancer awareness measured using a breast cancer awareness score (a combination of responses to the three questions from the trial‐specific questionnaire on: knowledge of symptoms, knowledge of age‐related risk and reported breast checking).
Notes	Two‐year follow‐up reported by Forbes 2011a. Study funded by Cancer Research UK.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Stratified block randomisation described.
Allocation concealment (selection bias)	Low risk	Detail on randomisation provided.
Blinding of participants and personnel (performance bias) All outcomes	High risk	Lack of blinding of personnel & participants.
Blinding of outcome assessment (detection bias) All outcomes	High risk	Lack of blinding of outcome assessors.
Incomplete outcome data (attrition bias) All outcomes	Low risk	Detail on attrition provided.
Selective reporting (reporting bias)	Low risk	All relevant outcomes detailed in Methods section were reported in Results section.
Other bias	Low risk	No other potential sources of bias were identified.