Sonja Wendel
Maastricht University
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Featured researches published by Sonja Wendel.
BMC Medical Informatics and Decision Making | 2012
Nicolien C Zwijnenberg; Michelle Hendriks; Olga C. Damman; Evelien Bloemendal; Sonja Wendel; Judith de Jong; Jany Rademakers
BackgroundConsumers are increasingly exposed to comparative healthcare information (information about the quality of different healthcare providers). Partly because of its complexity, the use of this information has been limited. The objective of this study was to examine how the amount of presented information influences the comprehension and use of comparative healthcare information when important consumer characteristics and skills are taken into account.MethodsIn this randomized controlled experiment, comparative information on total hip or knee surgery was used as a test case. An online survey was distributed among 800 members of the NIVEL Insurants Panel and 76 hip- or knee surgery patients. Participants were assigned to one of four subgroups, who were shown 3, 7, 11 or 15 quality aspects of three hospitals. We conducted Kruskall-Wallis tests, Chi-square tests and hierarchical multiple linear regression analyses to examine relationships between the amount of information and consumer characteristics and skills (literacy, numeracy, active choice behaviour) on one hand, and outcome measures related to effectively using information (comprehension, perceived usefulness of information, hospital choice, ease of making a choice) on the other hand.Results414 people (47%) participated. Regression analysis showed that the amount of information slightly influenced the comprehension and the perceived usefulness of comparative healthcare information. It did not affect consumers’ hospital choice and ease of making this choice. Consumer characteristics (especially age) and skills (especially literacy) were the most important factors affecting the comprehension of information and the ease of making a hospital choice. For the perceived usefulness of comparative information, active choice behaviour was the most influencing factor.ConclusionThe effects of the amount of information were not unambiguous. It remains unclear what the ideal amount of quality information to be presented would be. Reducing the amount of information will probably not automatically result in more effective use of comparative healthcare information by consumers. More important, consumer characteristics and skills appeared to be more influential factors contributing to information comprehension and use. Consequently, we would suggest that more emphasis on improving consumers’ skills is needed to enhance the use of comparative healthcare information.
BMC Health Services Research | 2013
Romy E. Bes; Sonja Wendel; Emile C. Curfs; Peter P. Groenewegen; Judith de Jong
BackgroundIn a demand oriented health care system based on managed competition, health insurers have incentives to become prudent buyers of care on behalf of their enrolees. They are allowed to selectively contract care providers. This is supposed to stimulate competition between care providers and both increase the quality of care and contain costs in the health care system. However, health insurers are reluctant to implement selective contracting; they believe their enrolees will not accept this. One reason, insurers believe, is that enrolees do not trust their health insurer. However, this has never been studied. This paper aims to study the role played by enrolees’ trust in the health insurer on their acceptance of selective contracting.MethodsAn online survey was conducted among 4,422 people insured through a large Dutch health insurance company. Trust in the health insurer, trust in the purchasing strategy of the health insurer and acceptance of selective contracting were measured using multiple item scales. A regression model was constructed to analyse the results.ResultsTrust in the health insurer turned out to be an important prerequisite for the acceptance of selective contracting among their enrolees. The association of trust in the purchasing strategy of the health insurer with acceptance of selective contracting is stronger for older people than younger people. Furthermore, it was found that men and healthier people accepted selective contracting by their health insurer more readily. This was also true for younger people with a low level of trust in their health insurer.ConclusionThis study provides insight into factors that influence people’s acceptance of selective contracting by their health insurer. This may help health insurers to implement selective contracting in a way their enrolees will accept and, thus, help systems of managed competition to develop.
BMC Health Services Research | 2013
Sonja Wendel; Benedict G. C. Dellaert; A. Ronteltap; Hans C.M. van Trijp
Information & Management | 2009
Sonja Wendel; Benedict G. C. Dellaert
BMC Health Services Research | 2011
Sonja Wendel; Judith de Jong; Emile C. Curfs
ACR North American Advances | 2009
Sonja Wendel; A. Ronteltap; Benedict G. C. Dellaert; J.C.M. (Hans) Van Trijp
ERIM report series research in management Erasmus Research Institute of Management | 2008
Sonja Wendel; Benedict G. C. Dellaert
British Journal of Nutrition | 2008
Sonja Wendel; A. Ronteltap; Benedict G. C. Dellaert; J.C.M. van Trijp
Advances in Consumer Research | 2008
Sonja Wendel; A. Ronteltap; Benedict G. C. Dellaert; J.C.M. van Trijp
ACR North American Advances | 2008
Sonja Wendel; Benedict G. C. Dellaert