• Katherinne Ferro Moura Franco, Gisela Cristiane Miyamoto, FrancoYuri Rafael Dos SantosYRDS0000-0003-4510-7680Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Brazil., Evany Maira Espírito Santo Salvador, Bruna Cristina Brajon do Nascimento, Laura Alves Menten, and CabralCristina Maria NunesCMN0000-0002-9445-3152Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Brazil..
• Master's and Doctoral Program in Physical Therapy, Universidade Cidade de São Paulo, Brazil.
• Eur J Pain. 2023 Jan 1; 27 (1): 547154-71.

BackgroundThe aim of this study was to assess the effectiveness and cost-effectiveness of Pilates versus aerobic exercises in the treatment of patients with fibromyalgia syndrome from a societal perspective.MethodsThis two-arm randomized controlled trial with blinded assessor and economic evaluation included 98 patients diagnosed with fibromyalgia syndrome using the American College of Rheumatology 2010 criteria, aged between 20 and 75 years, and pain intensity ≥3 points in the Pain Numerical Rating Scale. Patients were randomly allocated into the aerobic or Pilates group. Treatment was performed twice a week for 8 weeks. The primary outcome was the impact of fibromyalgia measured 8 weeks after randomization. Cost-effectiveness and cost-utility analyses were conducted for the impact of fibromyalgia and quality-adjusted life-years (QALYs), respectively, with a 12-month time horizon.ResultsThere was no difference between the groups for the impact of fibromyalgia (MD: 6.5 points; 95% CI: -1.8 to 14.9). The incremental cost-effectiveness ratio showed that 1-point increase in the impact of fibromyalgia was on average associated with a societal cost of £56 for the Pilates group compared to the aerobic group. The cost-utility analysis showed that the Pilates group had a 0.71 probability of being cost-effective at a willingness-to-pay of £30,000 per QALY gained.ConclusionThere was no significant difference between groups for the impact of fibromyalgia. Pilates was not cost-effective compared to aerobic exercises for the impact of fibromyalgia. However, Pilates seemed to be the preferred option of treatment considering QALYs, although it depends on the willingness-to-pay threshold.SignificancePilates showed to be a safe and effective alternative for the treatment of patients with fibromyalgia syndrome. Pilates presented similar results for the impact of fibromyalgia and superior results for pain relief compared to aerobic exercises, a highly recommended intervention for the treatment of fibromyalgia syndrome. Pilates was not cost-effective compared to aerobic exercises for the impact of fibromyalgia. However, Pilates seemed to be a cost-effective intervention for QALYs, depending on the decision-maker's willingness-to-pay threshold.© 2022 European Pain Federation - EFIC ®.

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