Long Memphis, Forbes Laura E, Papagerakis Petros, Lieffers Jessica R L
College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
Department of Family Relations & Applied Nutrition, University of Guelph, Guelph, ON, Canada.
JMIR Infodemiology. 2023 Aug 10;3:e40003. doi: 10.2196/40003.
Dental caries is the most common health condition worldwide, and nutrition and dental caries have a strong interconnected relationship. Foods and eating behaviors can be both harmful (eg, sugar) and healthful (eg, meal spacing) for dental caries. YouTube is a popular source for the public to access information. To date, there is no information available on the nutrition and dental caries content of easily accessible YouTube videos.
This study aimed to analyze the content of YouTube videos on nutrition and dental caries.
In total, 6 YouTube searches were conducted using keywords related to nutrition and dental caries. The first 20 videos were selected from each search. Video content was scored (17 possible points; higher scores were associated with more topics covered) by 2 individuals based on the inclusion of information regarding various foods and eating behaviors that impact dental caries risk. For each video, information on video characteristics (ie, view count, length, number of likes, number of dislikes, and video age) was captured. Videos were divided into 2 groups by view rate (views/day); differences in scores and types of nutrition messages between groups were determined using nonparametric statistics.
In total, 42 videos were included. Most videos were posted by or featured oral health professionals (24/42, 57%). The mean score was 4.9 (SD 3.4) out of 17 points. Videos with >30 views/day (high view rate; 20/42, 48% videos) had a trend toward a lower score (mean 4.0, SD 3.7) than videos with ≤30 views/day (low view rate; 22/42, 52%; mean 5.8, SD 3.0; P=.06), but this result was not statistically significant. Sugar was the most consistently mentioned topic in the videos (31/42, 74%). No other topics were mentioned in more than 50% of videos. Low-view rate videos were more likely to mention messaging on acidic foods and beverages (P=.04), water (P=.09), and frequency of sugar intake (P=.047) than high-view rate videos.
Overall, the analyzed videos had low scores for nutritional and dental caries content. This study provides insights into the messaging available on nutrition and dental caries for the public and guidance on how to make improvements in this area.
龋齿是全球最常见的健康问题，营养与龋齿之间存在紧密的相互关系。食物和饮食行为对龋齿可能既有危害（如糖）又有益健康（如进餐间隔）。YouTube是公众获取信息的一个热门来源。迄今为止，关于易于获取的YouTube视频中营养与龋齿方面的内容尚无相关信息。
本研究旨在分析YouTube上有关营养与龋齿的视频内容。
总共进行了6次使用与营养和龋齿相关关键词的YouTube搜索。每次搜索选取前20个视频。由两人根据是否包含有关影响龋齿风险的各种食物和饮食行为的信息对视频内容进行评分（满分17分；分数越高，涵盖的主题越多）。对于每个视频，记录有关视频特征（即观看次数、时长、点赞数、点踩数和视频发布时间）的信息。根据观看率（每日观看次数）将视频分为两组；使用非参数统计方法确定两组之间分数和营养信息类型的差异。
总共纳入了42个视频。大多数视频由口腔健康专业人员发布或有其参与（24/42，57%）。平均得分为4.9分（标准差3.4）（满分17分）。每日观看次数>30次（高观看率；20/42，48%的视频）的视频得分有低于每日观看次数≤30次（低观看率；22/42，52%；平均5.8分，标准差3.0）的视频的趋势（平均4.0分，标准差3.7），但该结果无统计学意义。糖是视频中最常被提及的主题（31/42，74%）。超过50%的视频未提及其他主题。低观看率视频比高观看率视频更有可能提及有关酸性食物和饮料（P = 0.04）、水（P = 0.09）以及糖摄入频率（P = 0.047）的信息。
总体而言，所分析的视频在营养和龋齿内容方面得分较低。本研究为公众提供了有关营养与龋齿方面可得信息的见解以及该领域如何改进的指导。
