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  1. Response rates to random digit dialing for recruiting participants to an onsite health study.

    Article - En anglais


    To evaluate the response rates when random digit dialing was used as a substitute for geographic area sampling and household interviews to recruit 2100 African Americans for a blood pressure measurement and hypertension-related knowledge and attitudes survey.


    Random digit dialing was used to identify African American adults living in 12 low-income ZIP code areas of Houston, Texas.

    A brief survey of hypertension awareness and treatment was administered to all respondents.

    Those who self-identified as African American were invited to a community location for blood pressure measurement and an extended personal interview.

    An incentive of $ 10 was offered for the completed clinic visit.

    A substudy of nonrespondents was carried out to test the effectiveness of a $25 incentive in increasing the response rate.

    Data from the initial random telephone interview were used to identify differences between those who did and did not attend the measurement session.


    Ninety-four percent of eligible persons contacted completed the telephone survey, and 65% agreed to visit a central community site for blood pressure measurement.

    In spite of the financial incentive and multiple attempts to reschedule missed appointments, only 26% of the 65% who agreed to attend completed the scheduled visit.

    In the substudy ofthe higher financial incentive, all of those who missed the original appointment agreed to another appointment, and 85% of this subgroup kept it. (...)

    Mots-clés Pascal : Réponse, Taux, Recrutement, Programme sanitaire, Homme, Hypertension artérielle, Noir américain, Méthodologie, Participation, Enquête, Téléphone, Motivation, Etats Unis, Amérique du Nord, Amérique, Appareil circulatoire pathologie

    Mots-clés Pascal anglais : Response, Rate, Recruitment, Sanitary program, Human, Hypertension, Black American, Methodology, Participation, Inquiry, Telephone, Motivation, United States, North America, America, Cardiovascular disease

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 96-0439517

    Code Inist : 002B30A01C. Création : 10/04/1997.