Items where Author is "Crutzen, Rik"

Number of items: 5.
  • Mixed-methods assessment of engagement with a digital intervention: the Wrapped feasibility Randomised Controlled Trial. (2026) Lauren Schumacher, Kayleigh Kwah, Rik Crutzen, Rebecca Gill, Katherine Brown, Stephen Bremner, Louise J. Jackson and Katie Newby picture_as_pdf
  • An Intervention to Increase Condom Use Among Users of Sexually Transmitted Infection (STI) Self-Sampling Websites (Wrapped): Feasibility Randomized Controlled Trial. (2025) Katie Newby, Kayleigh Kwah, Lauren Schumacher, Rik Crutzen, Louise Jackson, Stephen Bremner, Julia Bailey and Katherine Brown
  • Planning for successful participant recruitment and retention in trials of behavioural interventions: Feasibility Randomised Controlled Trial of the Wrapped intervention. (2025) Lauren Schumacher, Rik Crutzen, Kayleigh Kwah, Katherine Brown, Julia V. Bailey, Stephen Bremner, Louise J. Jackson and Katie Newby
  • An Intervention to Increase Condom Use Among Users of Sexually Transmitted Infection Self-sampling Websites (Wrapped) : Protocol for a Randomized Controlled Feasibility Trial. (2023) Katie Newby, Kayleigh Kwah, Lauren Schumacher, Rik Crutzen, Julia. V. Bailey, Louise. L. Jackson, Stephen Bremner and Katherine. E. Brown
  • An intervention to increase condom use among users of chlamydia self-sampling websites (wrapped) : Intervention mapping and think-aloud study. (2019) Katie Newby, Rik Crutzen, Katherine Brown, Julia Bailey, John Saunders, Ala Szczepura, Jonny Hunt, Tim Alston, S. Tariq Sadiq and Satyajit Das