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Use of Time-location Sampling for Systematic Behavioral Surveillance of Truck Drivers in Brazil

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Abstract

We assessed HIV-related risk behavior in a time-location sampling (TLS) interviewer administered survey of male truck drivers at the crossroads of two of the major highways used for trucking in Northeast Brazil (N = 686). Overall, 21.3% had sex while on the road (2.8% unprotected); 12.3% had sex with commercial sex workers (1.4% unprotected); 1.8% had sex with hitch-hikers (0.3% unprotected). Unprotected sex with non-wife partners while on the road was independently associated with stimulant use, lack of religious affiliation and being separated or divorced. Stimulant use may be a particular occupational hazard associated with risk for HIV among truck drivers in Brazil and should be considered as a point of intervention. The TLS sampling approach can form the basis of systematic behavioral surveillance in this highly mobile population.

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Acknowledgements

This study was financed by the Programa Nacional de DST e Aids, Brasil, with technical assistance from the Global AIDS Program of the US Centers for Disease Control and Prevention, Tulane University, and the San Francisco Department of Public Health and was conducted as part of a technology transfer process for sampling hard-to-reach populations for routine behavioral surveillance. We also wish to acknowledge the support for technical assistance from the University of California, San Francisco, Center for AIDS Prevention Studies, U.S. National Institute of Mental Health (NIMH), P30 MH062246; and the International Traineeships in AIDS Prevention Studies, U.S. NIMH, R25MH064712.

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Correspondence to Willi McFarland.

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Ferreira, L.O.C., de Oliveira, E.S., Raymond, H.F. et al. Use of Time-location Sampling for Systematic Behavioral Surveillance of Truck Drivers in Brazil. AIDS Behav 12 (Suppl 1), 32–38 (2008). https://doi.org/10.1007/s10461-008-9386-0

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