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Computational and Mathematical Methods in Medicine
Volume 2017, Article ID 8194940, 9 pages
Research Article

Are Health Videos from Hospitals, Health Organizations, and Active Users Available to Health Consumers? An Analysis of Diabetes Health Video Ranking in YouTube

1ITACA, Universitat Politècnica de València, Camino de Vera S/N, 46022 Valencia, Spain
2Instituto de Investigación Sanitaria del Hospital Universitario y Politécnico La Fe, Bulevar Sur S/N, 46026 Valencia, Spain
3Department of Computer Science, UiT The Arctic University of Norway, Tromsø, Norway

Correspondence should be addressed to Carlos Fernandez-Llatas; se.vpu.acati@satallfc

Received 22 September 2016; Accepted 22 November 2016; Published 24 January 2017

Academic Editor: Alejandro Rodríguez-González

Copyright © 2017 Carlos Fernandez-Llatas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Health consumers are increasingly using the Internet to search for health information. The existence of overloaded, inaccurate, obsolete, or simply incorrect health information available on the Internet is a serious obstacle for finding relevant and good-quality data that actually helps patients. Search engines of multimedia Internet platforms are thought to help users to find relevant information according to their search. But, is the information recovered by those search engines from quality sources? Is the health information uploaded from reliable sources, such as hospitals and health organizations, easily available to patients? The availability of videos is directly related to the ranking position in YouTube search. The higher the ranking of the information is, the more accessible it is. The aim of this study is to analyze the ranking evolution of diabetes health videos on YouTube in order to discover how videos from reliable channels, such as hospitals and health organizations, are evolving in the ranking. The analysis was done by tracking the ranking of 2372 videos on a daily basis during a 30-day period using 20 diabetes-related queries. Our conclusions are that the current YouTube algorithm favors the presence of reliable videos in upper rank positions in diabetes-related searches.