Randomized controlled trial comparing the efficacy of a video and information leaflet versus information leaflet alone on patient knowledge about surveillance and cancer risk in ulcerative colitis

Abstract

Background and aims: Knowledge of colorectal cancer risk in patients with ulcerative colitis is inadequate. The authors aimed to improve knowledge in a sample of patients and determine whether this was best achieved by a simple information leaflet or by watching a video reading a leaflet.

Materials and methods: Patients (n = 124) were recruited into a randomized controlled trial conducted from the gastroenterology outpatient departments of two Leicester hospitals. Participants completed a questionnaire prior to receiving the leaflet or viewing the video, immediately afterward, and 1 month later.

Results: One hundred fifteen questionnaires were returned (response rate = 93%). Both videos and leaflets increased knowledge with mean percentage improvements in scores of 71% (95% CI = 40.2-100) and 49% (95% CI = 32.1-66), respectively. However, the difference between the two interventions was not statistically significant (Difference = 22%, 95% CI = -56.3-13.2, p = 0.2). After 1 month, knowledge levels decreased in both groups to 55% (95% CI = 33.2-75.8; video plus leaflet) and 36% (95% CI = 23.7-48.6; leaflet alone).

Conclusions: Leaflets and videos have an important role in reinforcing information provided by clinicians. However, there appears to be no immediate or prolonged advantage of a video over and above that of a simple information leaflet. The cost implications of producing a video, such as extra staff time, need to be weighed against the minor benefit that this medium has to offer.