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[目的]探索干预项目的知晓/参与程度与干预效果的关系,为制订筑路工地艾滋病防治措施提供科学依据。[方法]于2005年8月及2006年8月,分别前后对959名和976名筑路工人开展横断面调查。运用社会流行病学分层分析,按照筑路工人对干预知晓/参与程度不同进行分层,对艾滋病干预效果进行评估。[结果]较干预前,筑路工人干预后知识、行为都有显著改变(P﹤0.01),且干预后,筑路工人未听说且未参加组、听说未参加组、听说且参加组3组艾滋病知识知晓率存在差异(P﹤0.01)。3组人群艾滋病知识得分和关键知识知晓情况与其对项目的知晓/参与程度密切相关(r=0.331/0.321,P﹤0.01)。[结论]保龙公路筑路工地艾滋病干预取得了显著效果。在开展筑路工地艾滋病防治过程中,应特别注重提高筑路工人的覆盖面,并且千方百计提高工友对项目的知晓和参与度。
[Objective] To explore the relationship between the level of awareness and participation of intervention projects and the effect of intervention, and provide a scientific basis for developing AIDS prevention and control measures on road construction sites. [Method] A cross-sectional survey of 959 and 976 road construction workers was carried out before and after August 2005 and August 2006, respectively. Using the social epidemiological stratification analysis, the effect of AIDS intervention was evaluated according to the level workers’ differentiation of intervention awareness / participation level. [Results] Before the intervention, the road workers experienced significant changes in their knowledge and behavior after intervention (P <0.01). After intervention, road workers did not hear and did not participate in the group, and they heard that they did not participate in the group and heard and participated Group 3 knowledge of AIDS awareness there is a difference (P <0.01). Knowledge of AIDS knowledge and key knowledge of the three groups was closely related to their awareness of the project / degree of participation (r = 0.331 / 0.321, P <0.01). [Conclusion] The HIV / AIDS intervention in the pavement construction site of Baolong Highway achieved remarkable results. During the AIDS prevention and control of road construction sites, special attention should be paid to improving the coverage of road construction workers and doing everything possible to raise the level of workers’ awareness and participation in the project.