A meta-analysis of 39 studies (110,380 participants) from 2009 to 2015 indicated that youth sexting increased over time. To inform current practice and policy initiatives, this meta-analytic update of studies since 2016 examined if rates of youth sexting have continued to rise and whether youth sexting differs by age, sex, sexting methods, and geographical location. Electronic searches were conducted in March 2020 in Embase, PsycINFO, MEDLINE, and Web of Science, yielding 1,101 nonduplicate records. Studies were included if they provided prevalence of youth sexting and data collection occurred ≥2016. Literature review and data extraction were conducted by following established PRISMA guidelines. All relevant data were extracted by two independent reviewers. To calculate mean prevalence rates, random-effects meta-analyses were conducted. Twenty-eight studies (N = 48,024) met inclusion criteria. The estimated pooled prevalence rates were as follows: (1) sending (19.3%), (2) receiving (34.8%), and (3) forwarding sexts without consent (14.5%). These prevalence rates are statistically similar to studies with data collected before 2016. In recent studies, females receive sexts at a higher rate than males, older youth are more likely to send sexts, and younger and older adolescents receive sexts at similar rates. Youth sexting rates have likely plateaued. Sexting education initiatives should begin early and encourage safe, ethical, and respectful online behavior.

对 2009 年至 2015 年 39 项研究（110,380 名参与者）的荟萃分析表明，青少年色情短信随着时间的推移而增加。为了为当前的实践和政策举措提供信息，这项自 2016 年以来的元分析更新研究检查了青少年色情短信的比率是否持续上升，以及青少年色情短信是否因年龄、性别、色情短信方式和地理位置而异。2020 年 3 月在 Embase、PsycINFO、MEDLINE 和 Web of Science 中进行了电子搜索，产生了 1,101 条非重复记录。如果研究提供了青少年色情短信的流行率并且数据收集发生在 2016 年以上，则纳入研究。文献回顾和数据提取是按照既定的 PRISMA 指南进行的。所有相关数据均由两名独立评审员提取。为了计算平均患病率，进行了随机效应荟萃分析。N  = 48,024) 符合纳入标准。估计的汇总流行率如下：（1）发送（19.3％），（2）接收（34.8％），和（3）未经同意转发sext（14.5％）。这些流行率在统计上与 2016 年之前收集的数据的研究相似。在最近的研究中，女性接收色情短信的比率高于男性，年长的年轻人更有可能发送色情短信，年轻和年长的青少年接收色情短信的比率相似。青少年色情短信率可能已经趋于稳定。色情教育计划应尽早开始，并鼓励安全、合乎道德和尊重他人的在线行为。