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Cost-effectiveness of a supplementary class-based exercise program in the treatment of knee osteoarthritis |
Richardson G, Hawkins N, McCarthy CJ, Mills PM, Pullen R, Roberts C, Silman A, Oldham JA |
International Journal of Technology Assessment in Health Care 2006 Jan;22(1):84-89 |
clinical trial |
3/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: No; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
OBJECTIVES: The aim of this study was to assess the cost-effectiveness of a class-based exercise program supplementing a home-based program when compared with a home-based program alone. In addition, we estimated the probability that the supplementary class program is cost-effective over a range of values of a decision maker's willingness to pay for an additional quality-adjusted life-year (QALY). METHODS: The resource use and effectiveness data were collected as part of the clinical trial detailed elsewhere. Unit costs were estimated from published sources. The net benefit approach to cost-effectiveness analysis is used to estimate the probability of the intervention being cost-effective. RESULTS: The addition of a supplementary class-based group results in an increase in QALYs and lower costs. For all plausible values of a decision maker's willingness to pay for a QALY, the supplementary class group is likely to be cost-effective. CONCLUSIONS: The addition of a class-based exercise program is likely to be cost-effective and, on current evidence, should be implemented.
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