Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada.
Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA.
Prev Med. 2023 Mar;168:107450. doi: 10.1016/j.ypmed.2023.107450. Epub 2023 Feb 14.
This study aimed to investigate whether screen time and social media use are associated with weight-change behaviors among an international sample of adolescents. Cross-sectional data from the 2020 International Food Policy Study Youth Survey (ages 10-17; Australia, Canada, Chile, Mexico, United Kingdom, United States; N = 12,031) were analyzed. Self-reported hours of use of five forms of screen time (e.g., social media use), and total screen time per weekday were assessed. Use of six contemporary social media platforms (e.g., Facebook, Instagram) were also assessed. Weight-change behaviors included current attempts to gain weight, lose weight, stay the same weight, and not do anything to change weight, as well as dieting to lose weight in the past 12 months. Greater total screen time per weekday was associated with attempts to gain weight and lose weight, and dieting to lose weight. Specific social media platform use was associated with weight-change behaviors. For example, use of Twitter was most strongly associated with attempts to gain weight, lose weight, and dieting to lose weight. Findings underscore the international pervasiveness of screen time and social media use correlating with weight-change behaviors among adolescents. Global efforts are needed to ensure the appropriate use of screens and social media among adolescents.
本研究旨在调查屏幕时间和社交媒体使用是否与国际青少年样本中的体重变化行为有关。对 2020 年国际粮食政策研究青年调查（年龄 10-17 岁；澳大利亚、加拿大、智利、墨西哥、英国、美国；N=12031）的横断面数据进行了分析。评估了五种形式的屏幕时间（如社交媒体使用）的自我报告使用时间和工作日每天的总屏幕时间。还评估了六个当代社交媒体平台（如 Facebook、Instagram）的使用情况。体重变化行为包括当前试图增加体重、减肥、保持体重不变以及不采取任何措施改变体重，以及在过去 12 个月内通过节食减肥。工作日每天的总屏幕时间越多，尝试增加体重和减肥以及节食减肥的可能性就越大。特定的社交媒体平台使用与体重变化行为有关。例如，使用 Twitter 与试图增加体重、减肥和节食减肥的关联最强。研究结果强调了屏幕时间和社交媒体使用在全球范围内与青少年体重变化行为相关的普遍性。需要在全球范围内努力确保青少年适当使用屏幕和社交媒体。
