Development, implementation and evaluation of an online course on evidence-based healthcare for consumers.

Background: Evidence-based healthcare (EBHC) principles are essential knowledge for patient and consumer ("consumer") engagement as research and research implementation stakeholders. The aim of this study was to assess whether participation in a free, self-paced online course affects confidence in explaining EBHC topics. The course comprises six modules and evaluations which together take about 6 h to complete.

The impact of survey nonresponse bias on conclusions drawn from a mammography intervention trial.

Background And Objective: This study demonstrates the impact of survey nonresponse bias on conclusions from a mammography trial targeting a disadvantaged population.

Methods: The trial randomized 1558 women to three interventions designed to promote repeat mammography: mailed reminder (minimum group); mailed thank-you card, patient newsletters, and reminder (maximum group); and no mailings (control group). The primary outcome, repeat mammogram within 15 months, was assessed from administrative and phone survey data.