期刊
JOURNAL OF CLINICAL EPIDEMIOLOGY
卷 60, 期 9, 页码 929-938出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jclinepi.2007.01.001
关键词
osteoarthritis; patient preferences; pain; adverse reactions; medication; risk attitudes
Objectives: Therapeutic decisions in osteoarthritis (OA) often involve trade-offs between accepting risks of side effects and gaining pain relief. Our objectives were (1) to determine patients' maximum acceptable risk increments (MARI) for different adverse effects from OA medication and (2) to identify the predictors of these preferences. Study Design and Setting: MARI were measured with a probabilistic threshold technique (TT). Risk and pain levels in the TT scenarios were controlled for in a 2 x 2 randomized factorial design. Clinical, sociodemographic, and psychological characteristics (decisional conflict and locus of control) of the participants were assessed using a self-administered questionnaire. Results: For 196 subjects, MARI varied by type of adverse effect, level of pain relief, and baseline risk. Mean MARI ranged from 3% to 5% for heart attack/stroke, 5% to 8% for stomach bleed, 13% to 21% for hypertension, 22% to 33% for fluid retention, and 23% to 35% for dyspepsia. Age, gender, education, physical and mental health, pain, disability, and locus of control were not associated with MARI. Conclusion: Participants varied widely in the level of risk they would accept, but their clinical, sociodemographic, and psychological characteristics did not explain this variation. These observations are important for the development of practice guidelines for physicians and patients' decision aids that can foster individualized, evidence-based yet preference-sensitive care for patients with OA. (c) 2007 Elsevier Inc. All rights reserved.
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