CNRS, INRA, Institute of Engineering Univ. Grenoble Alpes, University Grenoble Alpes, GAEL Grenoble, France.
Department of Global Health and Development London, London School of Hygiene and Tropical Medicine, London, UK.
Health Econ. 2019 Jan;28(1):144-160. doi: 10.1002/hec.3835. Epub 2018 Oct 15.
Social desirability bias, which is the tendency to underreport socially undesirable health behaviours, significantly distorts information on sensitive behaviours gained from self-reports. We applied the list randomisation method to indirectly elicit condom use among female sex workers and tested it among 651 female sex workers in Senegal, a country where sex workers face high social stigma and where the AIDS epidemic is mainly concentrated among this population. On the basis of our list randomisation, we found that the condom use rate in the last sexual intercourse with a client was 78%, which is significantly lower than the 97% obtained when asked directly in the survey. When estimating condom use among the subgroups, we found that female sex workers who are at a higher risk of infection are less likely to use condoms.
社会期望偏差会导致人们在报告一些不受社会欢迎的健康行为时有所隐瞒，从而严重扭曲了通过自报方式获得的有关敏感行为的信息。我们采用列表随机化方法来间接询问性工作者的 condom 使用情况，并在塞内加尔对 651 名性工作者进行了测试。在这个国家，性工作者面临着高度的社会耻辱，艾滋病疫情主要集中在这一人群中。基于我们的列表随机化方法，我们发现与客户最近一次性交时 condom 的使用率为 78%，这明显低于调查中直接询问时获得的 97%。在对亚组的 condom 使用情况进行估计时，我们发现感染风险较高的性工作者使用 condom 的可能性较小。
