BACKGROUND: The Project on Research and Intervention in Monotonous work (PRIM) studied Danish workers for 3-4 years to determine the effects of monotonous work. The present study is a subset of that cohort and compares prevalence and incidence differences of carpal tunnel syndrome (CTS) between workers with highly repetitive work tasks and workers with varied work tasks. METHODS: The baseline study included 731 participants. Follow-up examinations were performed after 6 and 18 months. The CTS diagnosis was based on symptom interviews and nerve conduction tests. The repetitiveness levels were determined with electrogoniometers and observation of cycle times. RESULTS: The overall prevalence of CTS was 1.6% on the working hand and 0.7% on the other hand. There was a significantly increased risk of CTS for every 10-hr increase of repetitive non-forceful work (OR = 1.84; 95% CI = 1.06-3.19) on the working hand. This result, however, was based on few cases and a low prevalence in the control group. The overall annual CTS incidence was 0.62% on the working hand and 0.44% on the other hand. For the repetitive work tasks, the mean power frequencies ranged from 0.53 to 0.79 Hz. CONCLUSIONS: In the baseline study, highly repetitive work was associated with CTS. The CTS incidence was too low to perform any analyses of exposure differences. Copyright 2002 Wiley-Liss, Inc.
BACKGROUND: The Project on Research and Intervention in Monotonous work (PRIM) studied Danish workers for 3-4 years to determine the effects of monotonous work. The present study is a subset of that cohort and compares prevalence and incidence differences of carpal tunnel syndrome (CTS) between workers with highly repetitive work tasks and workers with varied work tasks. METHODS: The baseline study included 731 participants. Follow-up examinations were performed after 6 and 18 months. The CTS diagnosis was based on symptom interviews and nerve conduction tests. The repetitiveness levels were determined with electrogoniometers and observation of cycle times. RESULTS: The overall prevalence of CTS was 1.6% on the working hand and 0.7% on the other hand. There was a significantly increased risk of CTS for every 10-hr increase of repetitive non-forceful work (OR = 1.84; 95% CI = 1.06-3.19) on the working hand. This result, however, was based on few cases and a low prevalence in the control group. The overall annual CTS incidence was 0.62% on the working hand and 0.44% on the other hand. For the repetitive work tasks, the mean power frequencies ranged from 0.53 to 0.79 Hz. CONCLUSIONS: In the baseline study, highly repetitive work was associated with CTS. The CTS incidence was too low to perform any analyses of exposure differences. Copyright 2002 Wiley-Liss, Inc.
Authors: Arun Garg; Kurt T Hegmann; Jacqueline J Wertsch; Jay Kapellusch; Matthew S Thiese; Donald Bloswick; Andrew Merryweather; Richard Sesek; Gwen Deckow-Schaefer; James Foster; Eric Wood; Richard Kendall; Xiaoming Sheng; Richard Holubkov Journal: BMC Musculoskelet Disord Date: 2012-06-06 Impact factor: 2.362
Authors: Z Mediouni; J Bodin; A M Dale; E Herquelot; M Carton; A Leclerc; N Fouquet; C Dumontier; Y Roquelaure; B A Evanoff; A Descatha Journal: BMJ Open Date: 2015-09-09 Impact factor: 2.692