ABSTRACT. Objective. We evaluated the accuracy of parental recall of children's immunization histories as compared with provider records and examined how errors in parental recall correlate with sociodemographic characteristics.Design. The validation study was part of a population-based household survey designed to assess immunization levels among Texas children under age 2 years. For 72% (n ؍ 3278), interviewers used vaccination records from the parent to copy dates for the diphtheria and tetanus toxoids a…
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