Dale Ann Marie, Strickland Jaime, Gardner Bethany, Symanzik Juergen, Evanoff Bradley Allen
Department of General Medical Sciences, Washington University School of Medicine, Campus Box 8005, 660 South Euclid Avenue, St. Louis, MO 63110, USA.
Int J Occup Environ Health. 2010 Jan-Mar;16(1):1-10. doi: 10.1179/107735210800546227.
Assessment of workplace physical exposures by self-reported questionnaires has logistical advantages in population studies, but is subject to exposure misclassification. This study measured agreement between eight self-reported and observer-rated physical exposures to the hands and wrists, and evaluated predictors of intermethod agreement. Workers (n = 341) from three occupational categories (clerical/technical, construction, and service) completed self-administered questionnaires and worksite assessments. Analyses compared self-reported and observed ratings using a weighted kappa coefficient. Personal and psychosocial factors, presence of upper extremity symptoms, andjob type were evaluated as predictors of agreement. Weighted kappa values were substantial for lifting (0.67) and holding vibrating tools (0.61), moderate for forceful grip (0.58), and fair to poor for all other exposures. Upper extremity symptoms did not predict greater disagreement between self-reported and observed exposures. Occupational category was the only significant predictor of inter-method agreement. Self-reported exposures may provide a useful estimate of some work exposures for population studies.
通过自我报告问卷评估工作场所的身体暴露情况在人群研究中具有后勤方面的优势，但容易出现暴露误分类。本研究测量了八项自我报告的手部和腕部身体暴露情况与观察者评定之间的一致性，并评估了方法间一致性的预测因素。来自三个职业类别（文职/技术、建筑和服务）的341名工人完成了自我管理的问卷和工作场所评估。分析使用加权kappa系数比较了自我报告和观察到的评级。个人和社会心理因素、上肢症状的存在以及工作类型被评估为一致性的预测因素。对于提举（0.67）和握持振动工具（0.61），加权kappa值较高；对于强力抓握（0.58），加权kappa值中等；对于所有其他暴露情况，加权kappa值为一般到较差。上肢症状并不能预测自我报告和观察到的暴露情况之间存在更大的不一致。职业类别是方法间一致性的唯一显著预测因素。自我报告的暴露情况可能为人群研究中的某些工作暴露提供有用的估计。
