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Gaceta Sanitaria

Print version ISSN 0213-9111


CARVAJAL, Bielka et al. Survey adaptation for bio-behavioural surveillance of HIV in Chilean female sex workers. Gac Sanit [online]. 2017, vol.31, n.6, pp.478-484.  Epub Nov 30, 2020. ISSN 0213-9111.


To adapt a behavioural questionnaire for second-generation HIV/AIDS surveillance in female sex workers (FSWs) in the Metropolitan Region, Chile.


Qualitative study of instruments validation. A Spanish instrument adapted in Catalonia was validated through a translation and back-translation of the original version. The content validity was determined through a modified Delphi method, via FSW and HIV experts representing community, political and institutional levels. Applicability aspects were determined by the application of the questionnaire to FSW in the Metropolitan Region.


The questionnaire, drafted in Spain, was successfully adapted to Chilean Spanish. The content validity process enabled sections to be created that address HIV in FSWs. The adapted questionnaire takes less than 15minutes to complete, which makes it usable in fieldwork. The 61 women surveyed came from different countries (all were Latin Americans) and had different educational levels; all this enabled potential applicability problems to be detected.


The adapted questionnaire for Chile contains all the UNAIDS indicators for FSWs, as well as the recommended indicators of Family Health International for bio-behavioural surveillance. Said questionnaire serves as a tool for second-generation HIV/other STD surveillance and further contributes to preventive policies in Chilean FSWs.

Keywords : Sex workers; HIV; Epidemiological surveillance; Delphi technique.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )