Leona Hakkaart van Roijen

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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)
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.
BACKGROUND The cost-utility of brief therapy compared with cognitive-behavioural therapy (CBT) and care as usual in the treatment of depression and anxiety has not yet been determined. AIMS To assess the cost-utility of brief therapy compared with CBT and care as usual. METHOD A pragmatic randomised controlled trial involving 702 patients was conducted(More)
This study presents a comprehensive overview of the societal burden of migraine in The Netherlands. We assessed the direct and indirect costs of this disease, and the health status of patients with migraine. We developed the 'illness and labour' (I&L) questionnaire to collect data on the effect of illness on labour performance. 846 migraine patients and 834(More)
Results of economic evaluations are often strongly influenced by estimates of indirect costs. International comparability of these estimates may contribute to rational decision-making in health care policy. Hence, estimates should be international comparable. Comparability of these results between countries may be hampered due to variation in methodology,(More)
BACKGROUND To support injury control, we assessed the direct medical costs and indirect costs of injuries in the Netherlands, making use of recent advances in health economics. METHODS We estimated the direct medical costs with the help of available data on health care utilization as a consequence of injuries. In our calculations of indirect costs, we(More)
Cancer costs in the Netherlands amounted to 4.8% of health care costs in 1988. For five cancer types, and a sixth group covering all other malignancies, costs were broken down by age, sex and disease phase. They showed a remarkably similar pattern of medical consumption. Costs were linked to observed incidence, mortality and estimated prevalence, together(More)
BACKGROUND Anxiety disorders are among the most prevalent psychiatric conditions, and are associated with poor quality of life and substantial economic burden. Cognitive behavioural therapy is an effective treatment to reduce anxiety symptoms, but is also costly and labour intensive. Cost-effectiveness could possibly be improved by delivering cognitive(More)
This study is an essential prerequisite to gain more insight into the complex relationship between public health and the costs of medical care. It offers a first tentative but comprehensive description of the total direct costs generated by all diseases in the Dutch population. We classified estimated direct costs of illness (39.8 thousand million guilders)(More)
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