Ziersch A, Gaffney J, Tomlinson D R
Department of Epidemiology and Public Health, Imperial College of Science, Technology and Medicine at St Mary's, Norfolk Place, London W2 1PG, UK.
Sex Transm Infect. 2000 Dec;76(6):447-53. doi: 10.1136/sti.76.6.447.
To evaluate the effectiveness of a pilot peer education STI prevention programme with male sex workers.
A process and outcome evaluation of the pilot programme undertaken in three London male escort agencies, using a quasi-experimental design.
Workers in three London escort agencies, including 88 who completed a questionnaire, five peer educators, and a further 16 men (including management) working in two of these agencies.
A peer education STI prevention programme run by the Working Men Project (WMP), a specialist sexual health service for male sex workers, was piloted in two London escort agencies. Five male sex workers participated in a 2 day peer education training programme. They then returned to their respective agencies to disseminate information and condoms, in an attempt to influence norms of behaviour. An outcome evaluation aimed to assess changes in STI related knowledge, high risk sexual behaviour, and attendance at a sexual health service. A pre-intervention questionnaire assessing variables such as STI related knowledge, sexual behaviour, and demographic information was administered in both agency A and agency B and a third agency, C, which acted as a control. Ten weeks after the peer educators returned to their agencies, the same questionnaire was administered in the same agencies. Peer educator referrals to the WMP were also recorded over this time period. The process evaluation involved interviews and focus groups with peer educators, and the completion of diaries about their experiences in the role. A further 16 men working in the agencies (including managers and an owner) were interviewed about their experience of the programme. Participant observation was also undertaken through regular outreach work to the agencies.
57 men completed the questionnaire at time 1 and 44 at time 2. Unfortunately, only 13 of these were matched, precluding any meaningful analysis of change in STI related knowledge and sexual behaviour. The questionnaire provided a profile of the men working in the agencies. Of the 88 men who completed the questionnaire at least once, the majority were homosexual, and in their late teens/early 20s. Most were of a "white" ethnic group, though there was some range within these categories. Most preferred to speak English and education levels were high. Relative STI knowledge revealed a high understanding of HIV and hepatitis B, moderate understanding of gonorrhoea, syphilis, genital warts and herpes, and little knowledge of non-specific urethritis (NSU) or chlamydia. Sexual behaviour suggested a highly sexually active population with both male and female paying and non-paying partners. Condom use was highest for paying partners, particularly for anal sex. Condom use for oral sex with all partners was less consistent, and condom use for all types of sex with regular partners was lower than with other partners. The small number of men engaging in vaginal sex with paying and regular partners were less likely to use condoms. 26 new patients registered at the WMP as a result of peer educator referrals, representing 65% of all new contacts over the study period. The process evaluation revealed that while the training programme was considered adequate and while peer educators felt the programme and their roles to be a success, their experience of the role was difficult. The role of management support was crucial in supporting the programme. The assumption that "peers" are particularly effective educators was not borne out by the results. While peers were considered suitable to discuss some aspects of the industry, many preferred to consult "professionals" about health related matters. The concept of "peers" was problematic with most of the men drawing "peers" from subgroups within the agencies. Other constraints on behaviour such as a lack of power, particularly with regard to a lack of management support, or poverty, had a substantial impact on behaviour which were not influenced by the peer educators.
The study illustrated the difficulties of utilising quasi-experimental evaluation methodology with this client group. It also demonstrated the limitations of peer education based on information provision health education models which focus on individual behaviour change. Suggestions are given for future interventions.
评估一项针对男男性工作者的同伴教育性传播感染预防试点项目的效果。
采用准实验设计,对在伦敦三家男伴游机构开展的试点项目进行过程和结果评估。
伦敦三家伴游机构的工作人员,包括88名完成问卷调查的人员、5名同伴教育者,以及在其中两家机构工作的另外16名男性(包括管理人员)。
由“男性工作项目”(WMP)开展的一项同伴教育性传播感染预防项目在伦敦两家伴游机构进行试点,该项目是为男男性工作者提供的专业性健康服务。5名男男性工作者参加了为期2天的同伴教育培训项目。之后他们回到各自机构传播信息和发放避孕套,试图影响行为规范。结果评估旨在评估性传播感染相关知识、高危性行为以及性健康服务就诊率的变化。在A机构、B机构以及作为对照的C机构,均在干预前进行了问卷调查,评估性传播感染相关知识、性行为和人口统计学信息等变量。同伴教育者回到各自机构10周后,在相同机构进行同样的问卷调查。在此期间还记录了同伴教育者转介到WMP接受服务的情况。过程评估包括与同伴教育者进行访谈和焦点小组讨论,并让他们撰写关于自身角色体验的日记。另外还对在机构工作的16名男性(包括经理和一名老板)进行了访谈,了解他们对该项目的体验。通过定期到机构开展外展工作进行参与观察。
57名男性在时间1完成问卷,4名男性在时间2完成问卷。遗憾的是,其中只有13份问卷是匹配的,这使得无法对性传播感染相关知识和性行为的变化进行任何有意义的分析。问卷提供了在这些机构工作的男性的概况。在至少完成一次问卷的88名男性中,大多数是同性恋,年龄在十八九岁或二十出头。大多数属于“白人”种族群体,不过在这些类别中也有一定差异。大多数人更喜欢说英语,教育水平较高。性传播感染相关知识显示,对艾滋病毒和乙型肝炎的了解程度较高,对淋病、梅毒、尖锐湿疣和疱疹的了解程度中等,对非特异性尿道炎(NSU)或衣原体的了解很少。性行为表明这是一个性活动非常活跃的群体,有付费和非付费的男女伴侣。与付费伴侣使用避孕套的比例最高,尤其是在肛交时。与所有伴侣进行口交时使用避孕套的情况不太一致,与固定伴侣进行各类性行为时使用避孕套的比例低于与其他伴侣。与付费和固定伴侣进行阴道性交的少数男性使用避孕套的可能性较小。由于同伴教育者的转介,有26名新患者在WMP登记,占研究期间所有新接触者的65%。过程评估显示,虽然培训项目被认为是充分的,同伴教育者也觉得该项目及其角色是成功的,但他们在这个角色中的体验很困难。管理支持的作用对于支持该项目至关重要。“同伴”是特别有效的教育者这一假设并未得到结果的证实。虽然同伴被认为适合讨论该行业的一些方面,但许多人更愿意就健康相关问题咨询“专业人士”。“同伴”的概念存在问题,大多数男性从机构内的子群体中挑选“同伴”。其他行为限制因素,如缺乏权力,特别是缺乏管理支持,或贫困,对行为有重大影响,而这些不受同伴教育者的影响。
该研究说明了对这个客户群体采用准实验评估方法的困难。它还证明了基于信息提供的健康教育模式进行同伴教育的局限性,这种模式侧重于个人行为改变。针对未来的干预措施提出了建议。