An economic analysis of implementing the SIGN third molar guideline: implications for the design and analysis of implementation studies

Colin Tilley, Emma McIntosh, Maryam Bahrami, Jan Clarkson, Chris Deery, Nigel Pitts

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Objectives: To compare the cost-effectiveness of four third molar guideline implementation strategies. Methods: Fifty-one dental practices in Scotland were randomized to one of four implementation strategies. The effectiveness of the strategies was measured by general dental practitioners' compliance with the guideline. 

    Results: The effectiveness of the guideline depended crucially upon the type of patient treated. In particular, for a minority of patients (14%) with no clinical signals of their 'type' the implementation strategies generate potentially large gains in evidence-based practice. However, the cost per patient of achieving these gains is large given that the costs are incurred for all patients, but benefits accrue only to a minority. 

    Discussion: The results show that the type of patient presenting for treatment can influence the effectiveness, cost-effectiveness and therefore policy conclusions. Consequently, the design and analysis of studies need to be sufficiently sensitive to detect subtle interaction effects. This may explain the dearth of guideline implementation trials with significant findings. The results also suggest that a more cost-effective implementation method in primary care dentistry may be to subsidize treatment conditional upon patient type.

    Original languageEnglish
    Pages (from-to)143-149
    Number of pages7
    JournalJournal of Health Services Research and Policy
    Volume10
    Issue number3
    DOIs
    Publication statusPublished - Jul 2005

    ASJC Scopus subject areas

    • Health Policy
    • Public Health, Environmental and Occupational Health

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