Optimizing the Fraction of Expensive Direct Measurements in an Exposure Assessment Study
2014 (English)In: International Journal of Statistics in Medical Research, ISSN 1929-6029, Vol. 3, no 1, 44-54 p.Article in journal (Refereed) Published
When designing studies to assess occupational exposures, one persistent decision problem is the selection between two technical methods, where one is expensive and statistically efficient and the other is cheap and statistically inefficient. While a few studies have attempted to determine the relatively more cost-efficient design between two technical methods, no successful study has optimized the fraction of the expensive efficient method in a combined technique intended for long-run exposure assessment studies. The purpose of this study was therefore to optimize the fraction of the expensive efficient measurements by resolving a precision-requiring cost minimization problem. For an indefinite total number of measurements, the total cost of a working posture assessment study was minimized by performing only expensive direct technical measurements. However, for a definite total number of measurements, the use of combined techniques in assessing the posture could be optimal, depending on the constraints placed on the precision and on the research budget.
Place, publisher, year, edition, pages
2014. Vol. 3, no 1, 44-54 p.
combined technique; cost function; productive efficiency; cost savings; marginal cost-benefit ratio; diseconomies of scale
Medical and Health Sciences
Research subject Occupational and Environmental Medicine
IdentifiersURN: urn:nbn:se:uu:diva-185418OAI: oai:DiVA.org:uu-185418DiVA: diva2:571674
ProjectsKostnadseffektiv datainsamling om fysisk arbetsbelastning
FunderForte, Swedish Research Council for Health, Working Life and Welfare