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Acad Med. 2018 Jan 2. doi: 10.1097/ACM.0000000000002118. [Epub ahead of print]

Medical Education Videos for the World: An Analysis of Viewing Patterns for a YouTube Channel.

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1
S. Tackett is assistant professor of medicine, Division of General Internal Medicine, Johns Hopkins Bayview Medical Center; and research director, Osmosis, Baltimore, Maryland. K. Slinn is a project manager and instructional designer, Osmosis, Baltimore, Maryland. T. Marshall is lead illustrator, Osmosis, Baltimore, Maryland. S. Gaglani is a medical student, Johns Hopkins University School of Medicine; and co-founder and CEO, Osmosis, Baltimore, Maryland. V. Waldman is an illustrator for Osmosis, Baltimore, Maryland. R. Desai is clinical instructor in pediatrics, Division of Infectious Disease, Stanford University School of Medicine, Palo Alto, California; and is chief medical officer, Osmosis, Baltimore, Maryland.

Abstract

PURPOSE:

Medical education videos can enhance learning and easily integrate into common instructional methods. YouTube permits worldwide access to high-quality medical education videos; however, no studies have described the reach of medical education videos on YouTube or what topics are preferred.

METHOD:

One year of YouTube analytics data (February 1, 2016, to January 31, 2017) was collected for a medical education-focused channel called Osmosis. Created December 20, 2015, the channel had 189 disease-focused videos by January 2017. Viewer and subscriber data were analyzed according to the World Bank's 4 income and 7 region classifications. Topic viewing was analyzed according to income level.

RESULTS:

The channel had accumulated 105,117 subscribers and 5,226,405 views for 20,153,093 minutes (38.3 years) from viewers located in 213/218 (97.7%) World Bank economies. While the number of videos increased 4.8 fold from February 2016 to January 2017, monthly views increased 50 fold and subscribers increased 117 fold. Low or middle income countries generated 2.2 million (42%) views and 53,000 (50%) subscribers, with similar view proportions across income level during the 12 months. A plurality of views (1.5 million, 29%) came from North America; Sub-Saharan Africa had the lowest number (150,000, 2.9%). Topic viewing generally corresponded to population health statistics.

CONCLUSIONS:

Medical education content on YouTube can immediately and consistently reach a global viewership with relevant content. Educators may consider posting videos to YouTube to reach a broad audience. Future work should seek to optimize assessment of learning and investigate how videos may affect patients.

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