Marc A. Koopmanschap

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Productivity costs are often an important cost component in economic evaluations of healthcare programs. However, there still remains a low degree of consensus on the exact measurement and valuation of these productivity costs. The development and testing of valid measurement instruments in patient and worker populations may give researchers better tools to(More)
A new approach for estimating the indirect costs of disease, which explicitly considers economic circumstances that limit production losses due to disease, is presented (the friction cost method). For the Netherlands the short-term friction costs in 1990 amount to 1.5-2.5% of net national income (NNI), depending on the extent to which short-term absence(More)
The lack of a uniform costing methodology is often considered a weakness of economic evaluations that hinders the interpretation and comparison of studies. Standardisation is therefore an important topic within the methodology of economic evaluations and in national guidelines that formulate the formal requirements for studies to be considered when deciding(More)
OBJECTIVE To estimate the health-related quality of life (HRQOL) and treatment satisfaction for patients with type 2 diabetes in the Netherlands and to examine which patient characteristics are associated with quality of life and treatment satisfaction. RESEARCH DESIGN AND METHODS For a sample of 1,348 type 2 diabetes patients, recruited by 29 general(More)
A health care program may influence both costs and health effects. We developed the Health and Labor Questionnaire (HLQ), which consists of four modules, to collect data on absence from work, reduced productivity, unpaid labor production, and labor-related problems. We applied the HLQ in several studies, and the results are encouraging.
OBJECTIVE To compare the feasibility, convergent and clinical validity of three commonly used burden scales: Caregiver Strain Index (CSI), Caregiver Reaction Assessment (CRA) and Sense of Competence Questionnaire (SCQ), with a self-developed single question on self-rated burden (SRB). SUBJECTS Stroke patients receiving support from an informal caregiver(More)
Informal care makes up a significant part of the total amount of care provided to care recipients with chronic and terminal diseases. Still, informal care is often neglected in economic evaluations of health care programs. Probably this is related to the fact that the costs of informal care are to an important extent related to time inputs by relatives and(More)
BACKGROUND AND PURPOSE An active strategy was developed for the implementation of the clinical guidelines on physical therapy for patients with low back pain. The effect of this strategy on patients' physical functioning, coping strategy, and beliefs regarding their low back pain was studied. SUBJECTS One hundred thirteen primary care physical therapists(More)
OBJECTIVES The aim of this study was to get insight in what criteria as presented in Health technology assessment (HTA) studies are important for decision makers in healthcare priority setting. METHODS We performed a discrete choice experiment among Dutch healthcare professionals (policy makers, HTA experts, advanced HTA students). In twenty-seven choice(More)
OBJECTIVES To determine the demands on healthcare resources caused by different types of illnesses and variation with age and sex. DESIGN Information on healthcare use was obtained from all 22 healthcare sectors in the Netherlands. Most important sectors (hospitals, nursing homes, inpatient psychiatric care, institutions for mentally disabled people) have(More)