Li Haochu, Tucker Joseph D, Ma Wei, Kim Eun Sook, Marley Gifty, Kang Dianmin, Liao Meizhen, Tang Weiming, Jiang Baofa
Department of Epidemiology, School of Public Health, Shandong University, 44 West Wenhua Road, Jinan, 250012, Shandong, China.
UNC Project-China, Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
AIDS Behav. 2020 Mar;24(3):854-865. doi: 10.1007/s10461-019-02515-7.
Data from a randomized controlled trial in 2015 were used to estimate the growth trajectories of peer norms, self-efficacy, and condom use behavior, and to identify associated sociodemographic and behavioral factors among a sample of 804 Chinese men who have sex with men (MSM). Latent class analysis and growth mixture modeling were conducted using Mplus. Two growth trajectories were estimated for each outcome variable with good model fit. The growth trajectories of peer norms were related to age (β = - 0.066, p < 0.05). The growth trajectories of self-efficacy were related to age (β = 0.057, p < 0.01) and using a condom during first sexual encounter with another man (β = 0.777, p < 0.001). The growth trajectories of condom use behavior were related to income (β = 0.366, p < 0.01) and having casual male partners (β = - 1.016, p < 0.001). Predictors for the growth factors within each latent class were also estimated. For subsets of MSM who are older, richer, used a condom during their first sexual encounter with another man, and do not have a casual male partner, condom videos may not have sufficient efficacy and other interventions may be necessary.
2015年一项随机对照试验的数据被用于估计同伴规范、自我效能感和避孕套使用行为的增长轨迹，并在804名中国男男性行为者（MSM）样本中确定相关的社会人口学和行为因素。使用Mplus进行潜在类别分析和增长混合模型分析。对每个结果变量估计了两条增长轨迹，模型拟合良好。同伴规范的增长轨迹与年龄有关（β = -0.066，p < 0.05）。自我效能感的增长轨迹与年龄有关（β = 0.057，p < 0.01）以及在与另一名男性的首次性接触中使用避孕套（β = 0.777，p < 0.001）。避孕套使用行为的增长轨迹与收入有关（β = 0.366，p < 0.01）以及有随意的男性伴侣（β = -1.016，p < 0.001）。还估计了每个潜在类别中增长因素的预测因素。对于年龄较大、较富裕、在与另一名男性的首次性接触中使用避孕套且没有随意男性伴侣的男男性行为者子集，避孕套视频可能没有足够的效果，可能需要其他干预措施。
