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[Agreement between guidelines for pharmaco-economic research and never-before-published health-economics evaluations]
M J Postma1, J J Kwik, W J M J Rutten
1Groningen University Institute for Drug Exploration/University of Groningen Research Institute of Pharmacy (GUIDE/GRIP), Antonius Deusinglaan 1, 9713 AV Groningen. m.postma@farm.rug.nl
Objective:
To investigate whether the health-economics research published in Dutch journals is in agreement with the guidelines for pharmaco-economic research as published in 1999 by the Dutch 'College voor zorgverzekeringen' [Healthcare Insurance Board].
Design:
Descriptive.
Method:
A literature search was performed for health-economic evaluations published during 1990-1999 in Dutch journals such as Nederlands Tijdschrift voor Geneeskunde (NTvG), Pharmaceutisch Weekblad and Tijdschrift voor Gezondheidswetenschappen. The resulting 19 studies, primarily published in the NTvG, were compared with the pharmaco-economic guidelines, summarised in 9 criteria.
Results:
The social perspective was taken in 5 studies (26%), non-related medical costs were excluded in 19 (100%), relevant subgroup analyses were performed in 16 (84%), effectiveness was explicitly differentiated from efficacy in 15 (79%), incremental analysis was performed in 18 (95%), an adequate period of analysis was chosen in 16 (84%), costs, benefits and health gains were discounted in 13 (68%), sensitivity analysis was included in the investigation in 10 (53%), and estimated cost prices were used in 9 (47%).
Conclusion:
The methodology in recently published Dutch health-economics research was partly in agreement with the later official guidelines for pharmaco-economic studies in the Netherlands.