TY  - JOUR
PY  - 1998//
TI  - Comparison of self-reported and expert-observed physical activities at work in a general population
JO  - American journal of industrial medicine
A1  - Nordstrom, David L.
A1  - Vierkant, R. A.
A1  - Layde, Peter M.
A1  - Smith, M. J.
SP  - 29
EP  - 35
VL  - 34
IS  - 1
N2  - Concerns about exposure assessment quality have impeded research to identify risk factors for ergonomic disorders. We compared self-reported and expert-observed estimates of work-related physical factors for participants in a study of carpal tunnel syndrome (CTS). We analyzed data from 61 subjects, including 28 CTS cases and 33 controls randomly samples from a case-control study with 417 participants. For 11 posture and manual materials handling factors, the median difference in mean exposure between self-reported and expert-observed exposure at work was less than 1/2 hour a day. Measurements by the two methods in this study agreed more often than expected by chance (median kappa 0.31 in cases and 0.28 in controls). Kappa differed significantly by case-control status for two factors: bending at the waist (kappa 0.79 in cases versus 0.28 in controls, P = 0.01) and twisting of the forearm (kappa 0.45 in cases versus -0.02 in controls, P = 0.02). Although imperfect, exposure information collected from workers' self-reports is useful for many ergonomic epidemiology studies.<p /> <p>Language: en</p>
LA  - en
SN  - 0271-3586
UR  - http://dx.doi.org/
ID  - ref1
ER  -