Online Information for Colorectal Cancer Screening: A Content Analysis of YouTube Videos.

Preventive care is a form of healthcare that aims to prevent diseases or detect diseases in an eary stage, especially for diseases like colorectal cancer. YouTube is a platform with great reach and opportunity to educate the public through preventive healthcare-related resources. However, understanding on current YouTube resources, specifically related to colorectal cancer screening, are inadequate in terms of informational quality. In this study, videos related to colorectal cancer and colorectal cancer screening were identified and analyzed by two reviewers. Very useful (4.5%), moderately useful (18.5%), somewhat useful (38.9%), and not useful (38.2%) videos were categorized based on a usefulness scale compiled by medical professionals. Less useful videos are paralleled with more views and public engagement in comparison with more useful videos which had been released by more credible sources. There is a significant association between video length and level of usefulness as well between video source and usefulness. This study illustrates the need for better educational healthcare resources and/or filtration on widely accessible platforms such as YouTube.