The (Cost-)Effectiveness of Nurse Practitioners Working at the Primary Out of Hours Emergency Service

The aim of this study is to explore whether the implementation of Nurse Practitioners can lead to a more accessible and efficient patient care at the primary out of hours service. The primary objectives of the proposed study are: 1. What are the effects of the implementation of NPs on the primary out of hours service in comparison with the current out of hours service? Effects in terms of accessibility, objective and subjective workload of general practitioners, quality of care and patient satisfaction. 2. How efficient is the implementation of NPs in the primary out of hours services? 3. What is the feasibility of the implementation of NPs in the out of hours services? And under which conditions? 4. What are the barriers and facilitating factors considering the implementation of NPs?