OBJECTIVE We explored the internal structure of within-group variation in the syndemic construct among bisexual adolescents, an understudied and highly vulnerable population known to experience health disparities compared with monosexuals (those attracted to a single gender). We sought to identify patterns of co-occurrence among three domains of high priority behavioral risks-sexual risk factors, substance use, and victimization-and their implications for suicidality. METHOD We used a national sample of 1,053 ethnically/racially diverse, high school age bisexual adolescents drawn from the 2015 Youth Risk Behavior Surveillance System (YRBSS). We applied latent class analysis (LCA) to 15 indicators measuring the three aforementioned domains and modeled predictors and an outcome of class membership. RESULTS Within-group variation in the syndemic construct appears categorical, systematic, and comprised of Low Risk (38%), Alcohol Use (20%), Peer-victimization (14%), Sexually Active (11%), Syndemic (11%), and Risk-taking (7%) classes. Classes were well-separated per classification statistics. The proportions of bisexual identification, sex, and race varied significantly across classes. Syndemic and Peer-victimization classes were equivalent and elevated in their suicidality risk, out of all classes. CONCLUSIONS Results revealed multiple and diverging forms of conjoint behavioral risk that conferred differential health implications; illuminated the shape and functional form of the syndemic construct among bisexual adolescents; and illustrated the utility of LCA for classifying typologies of risky and normative health behavior patterns. Psychologists are recommended to carefully consider the comorbidly operant nature of behavioral risks in this population. Future directions include addressing replication, multiple-group invariance, additional auxiliary variables, and alternative mixture techniques. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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双性恋青少年的综合行为风险和自杀倾向：潜在类别分析。

目的我们探讨了双性恋青少年（同性恋者相比，单性恋者健康状况不佳）的研究不足和高度脆弱的人群，即双性恋青少年群体内结构变异的内部结构。我们试图确定高优先级行为风险的三个领域（性风险因素，药物使用和受害情况）中共存的模式及其对自杀的影响。方法我们使用了2015年青年风险行为监测系统（YRBSS）抽取的1,053名不同种族/种族，高中年龄的双性恋青少年的全国样本。我们将潜在类别分析（LCA）应用于测量上述三个领域的15个指标，并对预测因子和类别成员资格的结果进行建模。结果人群中，同构结构的变异是分类的，系统的，包括低风险（38％），饮酒（20％），同伴受害（14％），性活跃（11％），同病性（11％） ）和冒险（7％）课程。每个分类统计信息的分类是完全分开的。两性之间的认同，性别和种族的比例在各个班级之间差异很大。在所有班级中，同病阶级和同龄人受害班级相当，自杀风险更高。结论结果揭示了多种多样的联合行为风险，对健康产生了不同的影响。阐明了双性恋青少年中同构结构的形状和功能形式；并说明了LCA对危险和规范性健康行为模式类型进行分类的实用性。建议心理学家仔细考虑该人群中行为风险的合并操作性质。未来的方向包括解决复制，多组不变性，其他辅助变量和替代混合技术。（PsycInfo数据库记录（c）2020 APA，保留所有权利）。