%0杂志文章%@ 2369-2960 %I JMIR出版物%V 6% 卡塔尔世界杯8强波胆分析N 1% P e16191 %T探索美国年轻人使用物质的推文:混合方法研究A Stevens,Robin C %A Brawner,Bridgette M %A Kranzler,Elissa Giorgi,Salvatore拉扎勒斯，Elizabeth Abera,Maramawit, A Huang,Sarah Ungar,Lyle +宾夕法尼亚大学护理学院家庭和社区卫生系，美国宾夕法尼亚州费城费金大厅418号，1 2158984063，robin2@nursing.upenn.edu %K社交媒体%K非法药物%K青年%K青少年%D 2020年%7 26.3.2020年%9原始论文%J JMIR公共卫生监测%G英文%X背景:青少年使用药物仍然是一个重大的公共卫生问题。社交媒体提供了讨论和展示与药物使用相关的信念和行为的机会，这表明发布与毒品相关的内容或查看发布的内容可能会影响青少年的药物使用。这与实证支持的理论相一致，这些理论假定行为受到对规范行为的感知的影响。然而，很少有研究探讨青年发表的与药物使用有关的帖子的内容。目的:本研究旨在通过描述青少年毒品相关推文的内容来确定青少年与药物使用相关的信念和行为。使用顺序解释混合方法，我们抽样了与毒品相关的推文，定性地检查了它们的内容。方法:我们使用自然语言处理来确定位于宾夕法尼亚州的年轻Twitter用户中公开推文(从2011年到2015年)中与毒品相关的词汇的频率。我们以年龄(13-24岁)为样本，从201112名用户中获得了约2300万条推文。 We developed a list of drug-related keywords and phrases and selected a random sample of tweets with the most commonly used keywords to identify themes (n=249). Results: We identified two broad classes of emergent themes: functional themes and relational themes. Functional themes included posts that explicated a function of drugs in one’s life, with subthemes indicative of pride, longing, coping, and reminiscing as they relate to drug use and effects. Relational themes emphasized a relational nature of substance use, capturing substance use as a part of social relationships, with subthemes indicative of drug-related identity and companionship. We also identified topical areas in tweets related to drug use, including reference to polysubstance use, pop culture, and antidrug content. Across the tweets, the themes of pride (63/249, 25.3%) and longing (39/249, 15.7%) were the most popular. Most tweets that expressed pride (46/63, 73%) were explicitly related to marijuana. Nearly half of the tweets on coping (17/36, 47%) were related to prescription drugs. Very few of the tweets contained antidrug content (9/249, 3.6%). Conclusions: Data integration indicates that drugs are typically discussed in a positive manner, with content largely reflective of functional and relational patterns of use. The dissemination of this information, coupled with the relative absence of antidrug content, may influence youth such that they perceive drug use as normative and justified. Strategies to address the underlying causes of drug use (eg, coping with stressors) and engage antidrug messaging on social media may reduce normative perceptions and associated behaviors among youth. The findings of this study warrant research to further examine the effects of this content on beliefs and behaviors and to identify ways to leverage social media to decrease substance use in this population. %M 32213472 %R 10.2196/16191 %U http://publichealth.www.mybigtv.com/2020/1/e16191/ %U https://doi.org/10.2196/16191 %U http://www.ncbi.nlm.nih.gov/pubmed/32213472