Increasing participation in cervical cancer screening: telephone contact with long-term non-attendees in Sweden. Results from RACOMIP, a randomized controlled trial.

Non-participation is the foremost screening-related risk factor for cervical cancer. We studied the effectiveness and cost-effectiveness of an intervention to increase participation in the context of a well-run screening program. Telephone contact with non-attendees, offering an appointment to take a smear, was compared with a control group in a population-based randomized trial in western Sweden.