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February 24, 1999

Voucher Incentives to Increase Childhood Immunization Rates—Reply

Author Affiliations

Margaret A.WinkerMD, Deputy EditorIndividualAuthorPhil B.FontanarosaMD, Interim CoeditorIndividualAuthor

JAMA. 1999;281(8):702-703. doi:10-1001/pubs.JAMA-ISSN-0098-7484-281-8-jbk0224

In Reply: Dr Golden correctly indicates that our study of the implementation of voucher incentives for immunization in Chicago WIC lacks the characteristics of a randomized trial. We refer her to 3 previous randomized trials (including 1 in Chicago), in which voucher incentives were found to increase immunization rates compared with controls and with assessment and referral.14 In these studies, the impact of voucher incentives was independent of race/ethnicity and health services available at the WIC site. A focus group study of mothers enrolled in WIC did not suggest any opposition to their implementation.5

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