Optimised patient information materials and recruitment to a study of behavioural activation in older adults: an embedded study within a trial [version 1; peer review: 2 approved]
Background: Printed participant information about randomised controlled trials is often long, technical and difficult to navigate.Improving information materials is possible through optimisation and user-testing, and may impact on participant understanding and rates of recruitment.Methods: A study within a trial (SWAT) was undertaken within the CAS