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Many clinicians believe that excessive wrist and forearm activity, particularly on a keyboard, is associated with increased risk for carpal tunnel syndrome (CTS). Swedish investigators examined the potential association among 2003 randomly selected working-age adults who completed general health status questionnaires that included questions about CTS symptoms, employment, and demographics. All 301 participants who reported symptoms possibly consistent with CTS were invited for clinical assessment; 219 ultimately underwent nerve-conduction tests.
On the basis of nerve-conduction findings, CTS was diagnosed in 97 subjects (overall prevalence, 4.8%). CTS prevalence was 5.1% in those who reported less than 1 hour of keyboard work daily, and it w…