TY - JOUR T1 - From questionnaire to database: field work experience in the ‘Immigration, work and health survey’ (ITSAL Project) JO - Gaceta Sanitaria T2 - AU - Delclos,Carlos E. AU - Benavides,Fernando G. AU - García,Ana M. AU - López-Jacob,María José AU - Ronda,Elena SN - 02139111 M3 - 10.1016/j.gaceta.2011.03.018 DO - 10.1016/j.gaceta.2011.03.018 UR - https://www.gacetasanitaria.org/es-from-questionnaire-database-field-work-articulo-S0213911111001592 AB - ObjectiveDespite the need for information in the area of migration and health, the available data are sparse. We describe the field work in a cross-sectional study on the health of immigrant workers in Spain. MethodA convenience sample of workers from Colombia, Ecuador, Morocco and Rumania in four cities was targeted, using a block-walking approach. The outcome rates of the American Association of Public Opinion Research were estimated. ResultsOf 6,504 persons approached, 71.4% were eligible contacts. Of these contacts, only 57.8% completed interviews. Response and cooperation rates were above 50%. ConclusionsBlock-walking enabled surveyors to access difficult-to-reach groups. The use of specifically trained surveyors with a background similar to that of the target population increased the effectiveness of our methods. ER -