Feasibility study for identifying adverse events attributable to vaccination by record linkage

J. Q. Nash, M. Chandrakumar, C. P. Farrington, S. Williamson, E. Miller

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    To investigate the feasibility of using a record linkage method for identifying vaccine attributable adverse events, computerized hospital admissions and vaccination records from South East Kent district were linked and checked for accuracy. Records for 90% of children under 2 years of age admitted to hospital over a 2-year period were matched with vaccination records using a computer algorithm based on name, date of birth, sex, and post-code supplemented by visual inspection. Relative to this gold standard, matching on date of birth, sex and postcode alone had a sensitivity of 60% and an incorrect match rate of 0·2% after matches to more than one vaccine recipient were excluded. Manual checking of a sample of admissions showed that only 4% had been assigned incorrect International Classification of Disease (ICD) codes. Routine record linkage of ICD admission codes to vaccination records therefore yields data of good quality which may be used for surveillance purposes.

    Original languageEnglish
    Pages (from-to)475-480
    Number of pages6
    JournalEpidemiology and Infection
    Volume114
    Issue number3
    DOIs
    Publication statusPublished - Jun 1995

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