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Gaceta Sanitaria

Print version ISSN 0213-9111

Abstract

DELCLOS, Carlos E. et al. From questionnaire to database: field work experience in the "Immigration, work and health survey" (ITSAL Project). Gac Sanit [online]. 2011, vol.25, n.5, pp. 419-422. ISSN 0213-9111.  http://dx.doi.org/10.1590/S0213-91112011000500013.

Objective: Despite 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. Method: A 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. Results: Of 6,504 persons approached, 71.4% were eligible contacts. Of these contacts, only 57.8% completed interviews. Response and cooperation rates were above 50%. Conclusions: Block-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.

Keywords : Migrant workers; Data collection; Occupational health; Field methods.

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