Sahlström A, Montgomery F, Balogh I
Department of Orthopaedics, Malmö University Hospital, Sweden.
Int Arch Occup Environ Health. 1996;68(5):321-4. doi: 10.1007/BF00409417.
Classifications of occupations, such as those of the International Labor Organization, have previously been constructed with respect to the physical strain and joint moment to be expected in conjunction in a profession. To detect which occupational activities specifically induce high knee moments, we designed a questionnaire to analyze walking, knee bending, climbing of stairs and ladders, and jumping during three consecutive 15-year exposure periods in the professional lives of 920 consecutive residents [329 men with a mean age of 72 (range 47-96) and 561 women with a mean age of 77 (range 47-96)] drawn from the population records of the City of Malmö. The answers, classified into three categories with respect to knee joint moment, were compared with a classification of the occupations of all probands according to the same principles by three independent specialists in industrial hygiene. The two classifications showed a high degree of agreement, with Cramer's V ranging from 0.49 to 0.6, suggesting a co-variance with a common variable, i.e. the true work-related knee moment.
职业分类，如国际劳工组织的职业分类，以前是根据一种职业中预期的身体劳损和关节力矩来构建的。为了检测哪些职业活动会特别导致高膝关节力矩，我们设计了一份问卷，以分析920名连续居民（329名男性，平均年龄72岁（范围47 - 96岁）和561名女性，平均年龄77岁（范围47 - 96岁））职业生活中连续三个15年暴露期内的行走、膝盖弯曲、爬楼梯和梯子以及跳跃情况。这些答案根据膝关节力矩分为三类，并由三名独立的工业卫生专家按照相同原则与所有被调查者的职业分类进行比较。这两种分类显示出高度一致性，克莱姆系数V在0.49至0.6之间，表明与一个共同变量存在协方差，即与工作相关的真实膝关节力矩。
