Psychometric properties of the osteoporosis assessment questionnaire (OPAQ) 2.0: results from the multiple outcomes of raloxifene evaluation (MORE) study.
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2014-01
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BACKGROUND: We explored psychometric properties of the Osteoporosis Assessment Questionnaire 2.0 in terms of reliability, validity, and responsiveness with generic, clinical, demographic, and preference-based data collected from a population of postmenopausal women with osteoporosis. METHODS: The Multiple Outcomes of Raloxifene Evaluation study was a randomized, placebo-controlled, multinational clinical trial evaluating efficacy and safety of raloxifene. The Osteoporosis Assessment Questionnaire 2.0, a generic quality of life measure (Nottingham Health Profile), and a preference-based measure (Health Utilities Index) were administered at baseline and annually. Psychometric properties of the 14 Osteoporosis Assessment Questionnaire 2.0 domains were evaluated by standard statistical techniques. RESULTS: This study included a subset of 1477 women from the Multiple Outcomes of Raloxifene Evaluation study population completing the questionnaires. Mean (standard deviation) age was 68.4 (6.8) years. Prevalent vertebral fractures were found in 70% (n =1038) of women. Internal consistency was >0.7 in 9 Osteoporosis Assessment Questionnaire 2.0 domains. Correlations were moderate and significant for similar Osteoporosis Assessment Questionnaire 2.0 domain scores, Nottingham Health Profile domains, and Health Utilities Index scores. All but 2 Osteoporosis Assessment Questionnaire 2.0 domains distinguished between patients with or without prevalent vertebral fractures and detected worsening with increased number of vertebral fractures. Women with ≥ 1 incident vertebral fracture generally had a greater worsening in Osteoporosis Assessment Questionnaire 2.0 scores (excluding social activity and support of family and friends) from baseline to study endpoint compared with women without incident vertebral fractures. CONCLUSIONS: Most domains in the Osteoporosis Assessment Questionnaire 2.0 demonstrated robust psychometric properties; however, several domains not showing these criteria may need to be reassessed and removed for a potentially shorter and validated version of the Osteoporosis Assessment Questionnaire.
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Shen, Wei, Russel Burge, April N Naegeli, Jeremy Shih, Jahangir Alam, Deborah T Gold and Stuart Silverman (2014). Psychometric properties of the osteoporosis assessment questionnaire (OPAQ) 2.0: results from the multiple outcomes of raloxifene evaluation (MORE) study. BMC musculoskeletal disorders, 15(1). p. 374. 10.1186/1471-2474-15-374 Retrieved from https://hdl.handle.net/10161/17380.
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Deborah T. Gold
My research has centered on the psychosocial consequences of chronic illness for older adults. Although I have studied breast cancer, syncope, head and neck cancer, Parkinson's disease and Paget's disease of bone, my primary interest and focus has been on osteoporosis and its psychological and social impact on those who suffer from it.
In particular, my current research focuses on compliance and persistence with osteoporosis medications. One current study focuses on the impact of race/ethnicity on medication decision making. We are trying to determine the relative weight of cost, convenience, dosing interval, efficacy, and safety in making medication decisions and taking medication on a regular basis as prescribed by a health care provider. I am also on the Steering Committees of two major observational studies with different osteoporosis medications.
Finally, I have worked with voluntary health organizations to translate our research findings into positive real-world outcomes for people with chronic illness. I serve on the Board of Trustees of the National Osteoporosis Foundation and am Chair of its Education Committee. I have also chaired the International Symposium on Osteoporosis (ISO) for the last 8 years.
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