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  1. Susan Burt
  1. Correspondence to Dr Susan Burt, Industrywide Studies Branch, Division of Surveillance Hazard Evaluations and Field Studies, National Institute for Occupational Safety and Health, 4676 Columbia Pkwy, Mail Stop R-15, Cincinnati, OH 45226, USA; sburt{at}

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In reply to the letter to the editor titled ‘Is carpal tunnel syndrome overdiagnosed?’, I would like to make several points.1 First, I would like to clarify that we did not observe any association between arm elevation and carpal tunnel syndrome (CTS) in our data.2 The only mention of arm elevation in our manuscript was to report in the discussion section that the inter-rater reliability of posture observations was higher for arm elevation than it was for wrist postures.

The case definition was discussed among several research groups in USA who have met for several years to discuss such issues as part of a musculoskeletal disorder research consortium. Although each institution has carried out independent research, and their …

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  • Competing interests None.

  • Patient consent Obtained.

  • Ethics approval Ethics approval was provided by the institutional review board of National Institute for Occupational Safety and Health.

  • Provenance and peer review Not commissioned; internally peer reviewed.