Small-area variations in sales of TNF inhibitors in Sweden between 2000 and 2009

References

• Chen YF, Jobanputra P, Barton P, Jowett S, Bryan S, Clark W, A systematic review of the effectiveness of adalimumab, etanercept and infliximab for the treatment of rheumatoid arthritis in adults and an economic evaluation of their cost-effectiveness. Health Technol Assess 2006;10:1–248.
   Web of Science ®Google Scholar
• McLeod C, Bagust A, Boland A, Dagenais P, Dickson R, Dundar Y, Adalimumab, etanercept and infliximab for the treatment of ankylosing spondylitis: a systematic review and economic evaluation. Health Technol Assess 2007;11:1–158, iii–iv.
   PubMedGoogle Scholar
• Woolacott N, Bravo Vergel Y, Hawkins N, Kainth A, Khadjesari Z, Misso K, Etanercept and infliximab for the treatment of psoriatic arthritis: a systematic review and economic evaluation. Health Technol Assess 2006;10:iii–iv, xiii–xvi, 1–239.
   PubMed Web of Science ®Google Scholar
• Clark W, Raftery J, Song F, Barton P, Cummins C, Fry-Smith A, Systematic review and economic evaluation of the effectiveness of infliximab for the treatment of Crohn's disease. Health Technol Assess 2003;7:1–67.
   PubMedGoogle Scholar
• Askling J, Dixon W. The safety of anti-tumour necrosis factor therapy in rheumatoid arthritis. Curr Opin Rheumatol 2008;20: 138–44.
   PubMed Web of Science ®Google Scholar
• Soderlin MK, Geborek P. Changing pattern in the prescription of biological treatment in rheumatoid arthritis. A 7-year follow-up of 1839 patients in southern Sweden. Ann Rheum Dis 2008;67:37–42.
   PubMed Web of Science ®Google Scholar
• Neovius M, Simard J, Sundstrom A, Jacobsson L, Geborek P, Saxne T, Generalizability of clinical registers used for drug safety and comparative effectiveness research: coverage of the Swedish Biologics Register. Ann Rheum Dis 2010 (in press).
   Google Scholar
• Coyte PC, Croxford R, Asche CV, To T, Feldman W, Friedberg J. Physician and population determinants of rates of middle-ear surgery in Ontario. J Am Med Assoc 2001;286:2128–35.
   Google Scholar
• Roos NP. Hysterectomy: variations in rates across small areas and across physicians’ practices. Am J Public Health 1984;74: 327–35.
   PubMedGoogle Scholar
• McPherson K, Wennberg JE, Hovind OB, Clifford P. Small-area variations in the use of common surgical procedures: an international comparison of New England, England, and Norway. N Engl J Med 1982;307:1310–14.
   PubMed Web of Science ®Google Scholar
• Bergstrom G, Karlberg I. Decentralized responsibility for costs of outpatient prescription pharmaceuticals in Sweden. Assessment of models for decentralized financing of subsidies from a management perspective. Health Policy 2007;81:358–67.
   Google Scholar
• van Vollenhoven RF, Klareskog L. Infliximab dosage and infusion frequency in clinical practice: experiences in the Stockholm biologics registry STURE. Scand J Rheumatol 2007;36: 418–23.
   PubMed Web of Science ®Google Scholar
• Kristensen LE, Geborek P, Saxne T. Dose escalation of infliximab therapy in arthritis patients is related to diagnosis and concomitant methotrexate treatment: observational results from the South Swedish Arthritis Treatment Group register. Rheumatology (Oxford) 2009;48:243–5.
   PubMedGoogle Scholar
• Askling J, Fored CM, Geborek P, Jacobsson LT, van Vollenhoven R, Feltelius N, Swedish registers to examine drug safety and clinical issues in RA. Ann Rheum Dis 2006;65:707–12.
   PubMed Web of Science ®Google Scholar
• Neovius M, Simard J, Askling J, for the ARTIS Study Group. Nationwide prevalence of rheumatoid arthritis in Sweden. In: Abstracts of the European League against Rheumatism (EULAR) Congress 2010. June 16–19, 2010; Rome, Italy. Abstract [SAT0489];
   Google Scholar
• Jonsson B, Kobelt G, Smolen J. The burden of rheumatoid arthritis and access to treatment: uptake of new therapies. Eur J Health Econ 2008;8(Suppl 2):S61–86.
   PubMed Web of Science ®Google Scholar
• Paul-Shaheen P, Clark JD, Williams D. Small area analysis: a review and analysis of the North American literature. J Health Polit Policy Law 1987;12:741–809.
   PubMed Web of Science ®Google Scholar
• Chassin MR. Explaining geographic variations. The enthusiasm hypothesis. Med Care 1993;31(Suppl):YS37–44.
   Google Scholar
• Blumenthal D. The variation phenomenon in 1994. N Engl J Med 1994;331:1017–18.
   PubMedGoogle Scholar