title: Use of time-location sampling for systematic behavioral surveillance of truck drivers in Brazil.
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.
authors.affiliation: Universidade de Pernambuco, Recife, Pernambuco, Brazil.
authors.forename: Luiz Oscar Cardoso
authors.initials: LO
authors.lastname: Ferreira
authors.forename: Eniel Sabino
authors.initials: ES
authors.lastname: de Oliveira
authors.forename: H Fisher
authors.initials: HF
authors.lastname: Raymond
authors.forename: Sanny Y
authors.initials: SY
authors.lastname: Chen
authors.forename: Willi
authors.initials: W
authors.lastname: McFarland
mesh_terms: D000328:Adult; D001938:Brazil; D015658:HIV Infections / Q000635:transmission*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011159:Population Surveillance / Q000379:methods*; D012309:Risk-Taking; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000635:transmission; D011795:Surveys and Questionnaires; D013997:Time Factors; D014186:Transportation; D000078329:Workforce