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Time-trends in health technology assessments: An analysis of developments in composition of international health technology assessments from 1989 to 2002

Published online by Cambridge University Press:  25 October 2005

Eva Draborg  and
Dorte Gyrd-Hansen
Eva Draborg
Affiliation:
University of Southern Denmark
Dorte Gyrd-Hansen
Affiliation:
University of Southern Denmark
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Abstract

Objectives: Health Technology Assessment (HTA) as a method for producing evidence in the health-care sector has been used for more than 25 years but has grown in extent during the past years. The objective of this study is to explore a possible evolution in these HTAs, in type of assessed technologies, in type of assessors, and in its methods.

Methods: A structured literature review was conducted of 433 HTA reports from the period 1989 to 2002 by eleven leading HTA institutions worldwide. The review focused on the methodology used, the assessors, and the assessed technologies and was designed to elucidate general time-trends in the practical application of HTA.

Results: The study shows that literature reviews are still the most often used method of assessment and accounts for a relatively stable fraction of assessments. The fraction of economic evaluations shows a slightly decreasing trend in contrast to randomized controlled trials and modeling/evaluations, which are applied more frequently. The data also demonstrate a more frequent use of external partners as assessors and a shift between devices and pharmaceuticals as assessed technologies.

Conclusions: The study shows an increase in the number of HTAs but no major developments in assessment methods used and, therefore, no widespread spillover from the development in research methods in general to the field of HTA methodology.

Keywords

HTA methodsType of technologyAssessorsInternational time-trend
Type
GENERAL ESSAYS
Information
International Journal of Technology Assessment in Health Care , Volume 21 , Issue 4 , October 2005 , pp. 492 - 498
Copyright
© 2005 Cambridge University Press

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