Objective To investigate the influence on the knowledge of aquired immune deficiency syndrome (AIDS)/sexually transmitted diseases (STD) among construction workers after receiving different intensity intervention measures and to provide evidence for implementing AIDS/STD prevention and intervention more effectively.
Methods A face-to-face questionnaire survey was conducted among 620 construction workers randomly selected from 6 sites in Xuhui District of Shanghai. Meanwhile different intensity intervention measures were delivered, and the changes of AIDS/STD knowledge were evaluated.
Results AIDS/STD knowledge among construction workers in high-, mid-and low-intervention groups increased obviously in 2 follow-up visits. The awareness rate of HIV transmission routes was higher than that of non-transmission routes, but the latter increased faster than the former. The trends of the knowledge score of HIV transmission routes increased slowly in low-intervention group, increased and then slowed down in mid-intervention group, and increased quickly and then kept steady in high-intervention group.
Conclusion AIDS/STD knowledge among construction workers has increased obviously after receiving intervention measures. The stronger the intervention measure is, the more obvious the recent effect is. The long-term effects of high level intervention are more obvious and those of the other two are near. These three different intensity intervention measures have all functioned well on AIDS/STD prevention, and can be used depending on specific working conditions. Our study can provide reference to other studies on similar populations.
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