Kurtz Steven P, Buttram Mance E, Surratt Hilary L, Stall Ronald D
Nova Southeastern University Research Center, 2121 Ponce de Leon Boulevard, Suite 430, Coral Gables, FL 33134, USA.
AIDS Educ Prev. 2012 Jun;24(3):193-205. doi: 10.1521/aeap.2012.24.3.193.
Serosorting is commonly employed by MSM to reduce HIV risk. We hypothesize that MSM perceive serosorting to be effective, and that serosorting is predicted by resilience and inversely related to syndemic characteristics. Surveys included 504 substance-using MSM. Logistic regression models examined syndemic and resilience predictors of serosorting, separately by serostatus. For HIV-positive men, positive coping behaviors (P = .015) and coping self-efficacy (P = .014) predicted higher odds, and cognitive escape behaviors (P = .003) lower odds, of serosorting. For HIV-negative men, social engagement (P = .03) and coping self-efficacy (P = .01) predicted higher odds, and severe mental distress (P = .001), victimization history (P = .007) and cognitive escape behaviors (P = .006) lower odds, of serosorting. HIV-negative serosorters reported lower perceptions of risk for infection than non-serosorters (P < .000). Although high risk HIV-negative men may perceive serosorting to be effective, their high rates of UAI and partner change render this an ineffective risk reduction approach. Relevant public health messages are urgently needed.
血清分型通常被男男性行为者用于降低感染艾滋病毒的风险。我们假设男男性行为者认为血清分型是有效的，并且血清分型可由心理弹性预测，且与共病特征呈负相关。调查纳入了504名有药物使用行为的男男性行为者。逻辑回归模型分别按血清学状态检验了血清分型的共病和心理弹性预测因素。对于艾滋病毒呈阳性的男性，积极的应对行为（P = 0.015）和应对自我效能感（P = 0.014）预测血清分型的几率较高，而认知逃避行为（P = 0.003）预测血清分型的几率较低。对于艾滋病毒呈阴性的男性，社交参与（P = 0.03）和应对自我效能感（P = 0.01）预测血清分型的几率较高，而严重精神困扰（P = 0.001）、受害史（P = 0.007）和认知逃避行为（P = 0.006）预测血清分型的几率较低。艾滋病毒呈阴性的血清分型者报告的感染风险认知低于非血清分型者（P < 0.000）。尽管艾滋病毒呈阴性的高风险男性可能认为血清分型是有效的，但他们较高的无保护肛交率和性伴侣更换率使得这成为一种无效的风险降低方法。迫切需要相关的公共卫生信息。
