Background and study aims Colonoscopy is an effective tool to prevent colorectal cancer. Social media has emerged as a source of medical information for patients.YouTube (a video sharing website) is the most popular video informative source. Therefore, we aimed to assess the educational quality of colonoscopy videos available on YouTube. Methods We performed a YouTube search using the keyword “colonoscopy” yielded 429 videos, of which 255 met the inclusion criteria. Colonoscopy Data Quality Score (C-DQS) was created to rate the quality of the videos (–10 to +40 points) based on a colonoscopy education video available on the Ameican Society of Gastrointestinal Endoscopy (ASGE) website. Each video was scored by six blinded reviewers independently using C-DQS. The Global Quality Score (GQS) was used for score validation. The intraclass correlation coefficient (ICC) was used to assess the similarity of the scores among reviewers. Results Professional societies had the highest number of videos (44.3 %). Videos from professional societies (6.94) and media (6.87) had significantly higher mean C-DQS compared to those from alternative medicine providers (1.19), companies (1.16), and patients (2.60) (P < 0.05). Mean C-DQS score of videos from healthcare providers (4.40) was not statistically different than other sources. There was a high degree of agreement among reviewers for the videos from all sources (ICC = 0.934; P < 0.001). Discussion YouTube videos are a poor source of information on colonoscopy. Professional societies and media are better sources of quality information for patient education on colonoscopy. The medical community may need to engage actively in enriching the quality of educational material available on YouTube.

Alcoholic liver disease (ALD) is the most common chronic liver disease worldwide. ALD can progress from alcoholic fatty liver (AFL) to alcoholic steatohepatitis (ASH), which can eventually lead to cirrhosis and, in some cases, hepatocellular carcinoma (HCC). Alcoholic hepatitis (AH), a severe form of ASH, is an acute clinical decompensation related to liver failure and high mortality. Most individuals consuming >40 g of alcohol per day develop AFL, but only a subset of individuals will have more advanced disease. Genetic, epigenetic, and environmental factors might explain the considerable interindividual variation in ALD phenotype. 1 BUrDen OF alCOHOl inTaKe in THe aMeriCan COnTinenT (nOrTH, CenTral anD sOUTH aMeriCa)Worldwide, 3 million people die annually of harmful alcohol consumption. According to the World Health Organization, in the entire American continent, the alcohol intake is classified as high and is constantly increasing. Annual per capita alcohol consumption in individuals older than 15 years is high in the American continent and gradually increases over time

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