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Background: Chronic pain is common; however, good epidemiological data are scarce. Such information can help all the involved stakeholders to make responsible decisions about health budgets and prioritisation. This study aims to provide best-evidence epidemiological information about chronic pain in the Netherlands., Methods: We performed a systematic search which yielded 16,619 references, 119 Dutch studies were relevant. We selected at least three studies per question that provided the most recent, representative and valid data., Results: The prevalence of moderate to severe general chronic pain among Dutch adults was estimated at 18%. This prevalence was 27% and 55% for any cancer pain. Up to 74% of patients with general or non-cancer chronic pain get treated; this percentage is little higher for patients with cancer pain. A substantial proportion of the patients receive drug treatment for their pain, mainly NSAIDs, but also non-pharmacological interventions for pain are being used. Up to 43% of the chronic non-cancer pain patients report not receiving treatment and up to 79% of the patients believe their pain is inadequately treated. All studies reported a detrimental effect of chronic pain on quality of life, activities of daily living and mental health. Chronic pain is also associated with direct and indirect medical costs, and patients may have decreased income and additional out-of pocket expenses., Conclusion: Chronic pain occur s frequently, has a negative impact on the patient and society and treatment may not always be adequate. Chronic pain should be seen as an important public health problem deserving more attention of Dutch healthcare workers and policy makers.

Objective: In this study we examined the differences in perceptions of the patient's health status between rheumatoid arthritis (RA) patients and their spouses, and correlates of these differences with patients' and spouses' well-being., Methods: A sample of 188 couples with one member receiving treatment for RA were selected from the rheumatology clinics in Twente, The Netherlands. The mean age of both RA patients and spouses was 56 years. Respondents completed questionnaires, including estimations of both patients and spouses on the patient's functional disabilities and pain, and scales on affect and marital commitment for patients and spouses., Results: Differences in estimations of patients and spouses were considerable. Both over- and underestimations of the patient's functional disabilities by the spouse were associated with the patient's poorer mental health status. Overestimations of the patient's functional disabilities were associated with poorer mental health among spouses., Conclusion: It is essential that any support intended by the spouse is in accordance with the patient's needs. If the patient's condition is misperceived by the spouse, this can lead to ineffective and inappropriate support being given.

DUTCH-AIMS2, a Dutch version of AIMS2 and successor to DUTCH-AIMS, is an instrument to assess health status among patients with rheumatic diseases. It provides measurements of 12 areas of health status on scales for health status proper, satisfaction, attribution and arthritis impact. We assessed the reliability of its scales in terms of internal consistency and their validity according to both internal standards and external standards. Correctly completed questionnaires were returned by 231 RA patients and 131 controls. Internal consistency coefficients for the health status scales ranged from 0.66 and 0.89, but most exceeded 0.80. Within-scale factor analyses produced single factors in all composite health status scales for both patients and controls, with only two exceptions. Factor analysis also identified a physical, social and psychological dimension among 11 areas of health. External validity was established by strong correlations between DUTCH-AIMS2 health status scales and functional class, laboratory parameters, and self-assessments of fatigue, loneliness, pain, functional disability and social support. DUTCH-AIMS2 is acceptably reliable and valid for use in a variety of settings.