Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Biomechanical risk factors for carpal tunnel syndrome: a pooled study of 2474 workers.

Authors
Harris-Adamson-C; Eisen-EA; Kapellusch-J; Garg-A; Hegmann-KT; Thiese-MS; Dale-AM; Evanoff-B; Burt-S; Bao-S; Silverstein-B; Merlino-L; Gerr-F; Rempel-D
Source
Occup Environ Med 2015 Jan; 72(1):33-41
NIOSHTIC No.
20045210
Abstract
Background: Between 2001 and 2010, five research groups conducted coordinated prospective studies of carpal tunnel syndrome (CTS) incidence among US workers from various industries and collected detailed subject-level exposure information with follow-up of symptoms, electrophysiological measures and job changes. Objective: This analysis examined the associations between workplace biomechanical factors and incidence of dominant-hand CTS, adjusting for personal risk factors. Methods 2474 participants, without CTS or possible polyneuropathy at enrolment, were followed up to 6.5 years (5102 person-years). Individual workplace exposure measures of the dominant hand were collected for each task and included force, repetition, duty cycle and posture. Task exposures were combined across the workweek using time-weighted averaging to estimate job-level exposures. CTS case-criteria were based on symptoms and results of electrophysiological testing. HRs were estimated using Cox proportional hazard models. Results: After adjustment for covariates, analyst (HR=2.17; 95% CI 1.38 to 3.43) and worker (HR=2.08; 95% CI 1.31 to 3.39) estimated peak hand force, forceful repetition rate (HR=1.84; 95% CI 1.19 to 2.86) and per cent time spent (eg, duty cycle) in forceful hand exertions (HR=2.05; 95% CI 1.34 to 3.15) were associated with increased risk of incident CTS. Associations were not observed between total hand repetition rate, per cent duration of all hand exertions, or wrist posture and incident CTS. Conclusions: In this prospective multicentre study of production and service workers, measures of exposure to forceful hand exertion were associated with incident CTS after controlling for important covariates. These findings may influence the design of workplace safety programmes for preventing work-related CTS.
Keywords
Carpal-tunnel-syndrome; Workers; Hand-injuries; Musculoskeletal-system; Musculoskeletal-system-disorders; Demographic-characteristics; Psychophysiology; Risk-factors; Statistical-analysis; Humans; Men; Women; Biomechanics; Age-groups; Body-weight; Job-stress; Repetitive-work
Contact
Prof. David Rempel, 1301 South 46th Street, Bldg 163, Richmond, CA 94804, USA
CODEN
OEMEEM
Publication Date
20150101
Document Type
Journal Article
Email Address
david.rempel@ucsf.edu
Funding Type
Grant
Fiscal Year
2015
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-009712; M102014
Issue of Publication
1
ISSN
1351-0711
NIOSH Division
DSHEFS
Source Name
Occupational and Environmental Medicine
State
CA; WI; UT; MO; OH; WA; IA
Performing Organization
University of California-San Francisco
TOP