Evidence to Inform Decision Makers in Thailand: A Cost-Effectiveness Analysis of Screening and Treatment Strategies for Postmenopausal Osteoporosis
นันทกร ทองแตง, ปฤษฐพร กิ่งแก้ว*, ยศ ตีระวัฒนานนท์, อุษาวดี มาลีวงศ์
Health Intervention and Technology Assessment Program, Department of Health, Ministry of Public Health, 6th floor, 6th Building, Tiwanon Road, Nonthaburi 11000, Thailand
บทคัดย่อ
 
Objectives: To assess value for money of providing systematic screening for osteoporosis among postmenopausal women and medical treatments for those diagnosed with osteoporosis as evidence-based decision making for the revision of the National List of Essential Medicines.
Methods: Decision analytic models were constructed, using a societal perspective, to assess the cost per quality-adjusted life-years (QALYs) gained from systematic screening using the Osteoporosis Self-Assessment Tool and dual-energy X-ray absorptiometry or dual-energy X-ray absorptiometry alone compared with no screening. Alendronate, risedronate, raloxifene, and nasal calcitonin were economically evaluated to determine a treatment of choice for the prevention of osteoporosis-related fractures. Most input parameters were obtained from literature reviews, and systematic reviews and meta-analyses, if available. The service costs and related household expenses were based on the Thai setting. Probabilistic and one-way sensitivity analyses were used to incorporate the impact of parameter uncertainty.
Results: The Osteoporosis Self-Assessment Tool and sequential dual-energy X-ray absorptiometry provided better value for money for osteoporosis screening among young age groups (<60 years old). Although there was no significant difference in cost per QALY for older age groups, alendronate provided the lowest incremental cost-effectiveness ratio while nasal calcitonin presented the highest incremental cost-effectiveness ratio. It was shown that providing medication for a secondary prevention yielded a much higher cost per QALY gained compared with providing medication for a primary prevention.
Conclusions: Given the benchmark set at 100,000 Thai baht per QALY gained, providing systematic screening and treatment for osteoporosis was cost-ineffective in the Thai setting.
 
ที่มา
Value in Health ปี 2555, January ปีที่: 15 ฉบับที่ 1 (Supplement 1) หน้า S20-S28
คำสำคัญ
screening, Treatment, Cost-utility analysis, decision analysis model, postmenopausal osteoporosis