An Intervention to Increase Condom Use Among Users of Chlamydia Self-Sampling Websites (Wrapped): Intervention Mapping and Think-Aloud Study

Katie Newby   ¹ , BSc, MSc, PhD ;   Rik Crutzen   ² , PhD ;   Katherine Brown   ¹ , PhD ;   Julia Bailey   ³ , PhD ;   John Saunders   ⁴ , PhD ;   Ala Szczepura   ⁵ , BA, DPhil ;   Jonny Hunt   ⁶ , MA ;   Tim Alston   ⁷ , BEng ;   S Tariq Sadiq   ⁸ , MD, FRCP ;   Satyajit Das   ⁹ , MD, FRCP

¹ Centre for Advances in Behavioural Science, Faculty of Health and Life Sciences, Coventry University, Coventry, United Kingdom

² Health Promotion, School for Public Health and Primary Care, Maastricht University, Maastricht, Netherlands

³ Primary Care and Population Health, Institute of Epidemiology and Health, University College London, London, United Kingdom

⁴ Health Protection Services, Public Health England, London, United Kingdom

⁵ Enterprise and Innovation, Coventry University, Coventry, United Kingdom

⁶ Going Off The Rails, Coventry, United Kingdom

⁷ Preventx, Sheffield, United Kingdom

⁸ Institute for Infection and Immunity, St George's, University of London, London, United Kingdom

⁹ Coventry and Warwickshire Partnership Trust, Coventry, United Kingdom