Leavitt F
Department of Psychology and Social Sciences, Rush Medical College, Chicago, IL.
Spine (Phila Pa 1976). 1992 Mar;17(3):307-10. doi: 10.1097/00007632-199203000-00011.
Studies of the industrially injured worker invariably suggest that compensation reinforces pain and prolongs disability. These claims may be spurious. Researchers have historically failed to take into account the fact that return to work is partly contingent on the amount of physical labor involved in the job, and that compensation and noncompensation groups differ on this variable in important ways. Patients on compensation are more likely involved in heavy physical exertion on their jobs. In this study, 1,191 workers with low-back pain who were injured on the job were compared with 389 workers who were injured away from work on variables of disability time and pain intensity. To disentangle the effects of physical exertion, four levels ranging from none to heavy were examined. The results suggest that injury on the job operates both independent of level of physical exertion, as well as in interaction with it, to extend the period of disability. Injury on the job is associated with prolonged disability time, irrespective of the type of job performed.
对工伤工人的研究总是表明，赔偿会加剧疼痛并延长残疾时间。这些说法可能是虚假的。研究人员历来没有考虑到重返工作岗位部分取决于工作中体力劳动的量这一事实，而且赔偿组和非赔偿组在这个变量上存在重要差异。领取赔偿的患者在工作中更有可能从事重体力劳动。在这项研究中，将1191名工作中腰部受伤的工人与389名非工作中受伤的工人在残疾时间和疼痛强度变量上进行了比较。为了理清体力劳动的影响，研究了从无到重的四个级别。结果表明，工作中的受伤与残疾时间的延长有关，无论从事何种工作类型，它既独立于体力劳动水平起作用，也与体力劳动水平相互作用。
