Nutrition Department, Federal University of Juiz de Fora, Campus Governador Valadares, Brazil.
Preventive and Social Medicine Department, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Am J Health Promot. 2023 Jun;37(5):681-684. doi: 10.1177/08901171231152147. Epub 2023 Jan 17.
To analyze the temporal trend of leisure screen time among adults in Brazil between 2016 and 2021.
Time-series analysis of six cross-sectional surveys.
Data from the Surveillance System for Risk and Protective Factors for Chronic Diseases by Telephone Survey (Vigitel) (2016/21).
A probabilistic sample of 265 252 adults (≥18 years).
Time watching television (TV), or using cell phone, computer, or tablet (CCT) during leisure time, and indicators of prolonged exposure for the total population and sociodemographic groups.
Prais-Winsten regression models were used to identify trends in the studied period.
Mean time watching TV remained stable (2.3 h to 2.2 h/day) as the frequency of adults watching TV ≥ 3 hours/day (25.7% to 25.1%) for 2016/21. There was an increase in mean time spent on CCT (1.7 h to 2.0 h/day; .08 h/day/year; P < .001) and in the frequency of adults spending ≥ 3 hours/day on CCT (19.9% to 25.5%; 1.33 pp/year; P < .001) for 2016/21. The increase in screen time was relevant in all sociodemographic groups.
Leisure screen time has increased in Brazil, with greater intensity over time.
分析 2016 年至 2021 年期间巴西成年人休闲时段屏幕时间的时间趋势。
六项横断面调查的时间序列分析。
通过电话调查的慢性病风险和保护因素监测系统（Vigitel）的数据（2016/21）。
一个概率样本 265252 名成年人（≥18 岁）。
休闲时间看电视（TV）或使用手机、电脑或平板电脑（CCT）的时间，以及总人口和社会人口统计学群体的长时间暴露指标。
采用普赖斯-温斯坦回归模型来确定研究期间的趋势。
观看电视的平均时间保持稳定（2.3 小时至 2.2 小时/天），因为每天观看电视≥3 小时的成年人比例（25.7%至 25.1%）在 2016/21 年保持不变。CCT 的平均时间有所增加（1.7 小时至 2.0 小时/天；每年增加 0.08 小时；P<0.001），每天花费≥3 小时在 CCT 上的成年人比例也有所增加（19.9%至 25.5%；每年增加 1.33 个百分点；P<0.001）。2016/21 年屏幕时间的增加在所有社会人口统计学群体中都很明显。
巴西的休闲屏幕时间增加了，而且随着时间的推移，增加的幅度更大。
