Health Sciences Faculty, Department of Nutrition and Dietetics, Istanbul Kültür University, Bahcelievler, 34191, Istanbul, Turkey.
Health Sciences Institute, İstanbul University, Istanbul, Turkey.
Obes Surg. 2020 Dec;30(12):4905-4910. doi: 10.1007/s11695-020-05015-z. Epub 2020 Sep 29.
YouTube™ is a platform that many people, including patients, use to access health information. Recent studies have revealed that videos on YouTube™ are misleading or that medical videos may not contain appropriate information. This study aimed to assess the quality and reliability of videos on nutrition after bariatric surgery.
The keywords "after bariatric surgery diet" and "weight loss surgery postop diet" were used, and the first 100 videos for each keyword on YouTube™ were analyzed by considering the source, duration, content, and the number of likes of the video. The popularity of the video was calculated using the video power index (VPI) and view rate. The educational quality of the videos was evaluated using the DISCERN score, the Journal of the American Medical Association (JAMA) score, the Global Quality Score (GQS), the usefulness score, and a novel postoperation nutrition score (PONS).
One hundred fourteen patients were included in the study. The mean duration and number of views were 12.51 min and 87,558.46, respectively. The DISCERN score, JAMA score, GQS, and usefulness score of the physicians or dietician-based videos were significantly higher than those of the patient-based videos (p < 0.001). Positive correlations were found between the VPI and view ratio, as well as between the duration and number of likes. Additionally, the DISCERN score was significant correlated with the duration and number of likes. Significantly positive correlations were found between the usefulness score and duration, usefulness score and number of likes, and PONS and duration (p < 0.01).
Informational videos on nutrition after bariatric surgery on YouTube™ are of low quality. Although the videos uploaded by physicians and dieticians have higher quality, only a few are available. Additionally, patients prefer to watch low-quality videos.
YouTube 是一个许多人（包括患者）用来获取健康信息的平台。最近的研究表明，YouTube 上的视频具有误导性，或者医疗视频可能不包含适当的信息。本研究旨在评估减肥手术后营养相关视频的质量和可靠性。
使用“减肥手术后饮食”和“减重手术后饮食”等关键词，分析 YouTube 上每个关键词的前 100 个视频，考虑视频来源、时长、内容和视频点赞数。使用视频功率指数（VPI）和观看率计算视频的受欢迎程度。使用 DISCERN 评分、美国医学会（JAMA）评分、全球质量评分（GQS）、有用性评分和新的术后营养评分（PONS）评估视频的教育质量。
本研究共纳入 114 名患者。视频的平均时长和观看次数分别为 12.51 分钟和 87558.46。医生或营养师制作的视频的 DISCERN 评分、JAMA 评分、GQS 和有用性评分均显著高于患者制作的视频（p<0.001）。VPI 与观看率呈正相关，时长与点赞数呈正相关。此外，DISCERN 评分与时长和点赞数呈显著正相关。有用性评分与时长、有用性评分与点赞数以及 PONS 与时长之间均呈显著正相关（p<0.01）。
YouTube 上关于减肥手术后营养的信息视频质量较低。虽然医生和营养师上传的视频质量较高，但数量较少。此外，患者更喜欢观看低质量的视频。
