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目的了解男男性行为人群(man who have sex with men,MSM)人群中HIV感染者的特征及艾滋病相关因素的变化趋势,为MSM人群干预提供针对性的建议。方法对2006-2009年4次横断面调查发现的HIV感染者的资料进行统计分析,比较趋势变化。结果 2006-2009年发现的HIV感染者呈现低龄化,未婚比例、大专及以上文化程度感染者的比例及学生所占比例呈上升的趋势。最近1次与男性发生肛交时安全套使用率由2006年的48.4%上升至2009年的68.0%,最近6个月与男性发生肛交时每次都使用安全套的比例由2006年的17.2%上升至2007年的34.9%(P=0.016),梅毒感染率由2006年的16.3%上升至2009年的27.0%。2006-2009年接受干预服务的比例均低于40%。结论 MSM人群中的HIV感染者呈现低龄化、安全套使用率及接受干预服务比例低,合并梅毒感染率高,急需对MSM人群及其感染者开展更具针对性的干预工作。
Objective To understand the characteristics of HIV-infected persons and the trend of AIDS-related factors among men who have sex with men (MSM) population and provide suggestions for the intervention of MSM population. Methods The data of HIV infected persons detected by 4 cross-sectional surveys from 2006 to 2009 were statistically analyzed to compare the trend changes. Results The number of HIV-infected persons found in 2006-2009 was showing an age-old trend. The proportion of unmarried people, people with education at tertiary education level or above and the proportion of students showed an upward trend. The rate of condom use on anal intercourse with men increased from 48.4% in 2006 to 68.0% in 2009 and the proportion of condom use on each anal intercourse with men in the recent 6 months increased from 17.2% in 2006 to 2007 Year (34.9%) (P = 0.016). The syphilis infection rate rose from 16.3% in 2006 to 27.0% in 2009. The percentage of interventions received during 2006-2009 was less than 40%. Conclusion HIV infection in MSM population is getting younger, the rate of condom use and intervention services is low, and the rate of syphilis infection is high. Therefore, more targeted interventions are urgently needed for MSM population and their infected persons.