Yassi A, Sprout J, Tate R
Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada.
Am J Ind Med. 1996 Oct;30(4):461-72. doi: 10.1002/(SICI)1097-0274(199610)30:4<461::AID-AJIM12>3.0.CO;2-2.
A review of workers' compensation board (WCB) claims in Manitoba, Canada identified an estimated 382 upper limb repetitive strain injury (RSI) claims or 9.3% of all upper limb WCB claims accepted in 1991. Tendonitis and carpal tunnel syndrome (CTS) were the most frequent diagnoses (27.5% and 19.3%, respectively). Rates of RSI were not significantly different by gender and age. RSI claimants had been experiencing symptoms for an average of 8 months prior to filing a compensation claim. While clerical occupations accounted for 13.6% of all upper limb RSI claims, the rates for RSIs in these occupations were low (0.67/1,000 workers), in contrast to occupations with the highest RSI rates: food, beverage, and related processing occupations (14.68/1,000 workers) and fabricating, assembling, and repairing of metal products (9.32/1,000). The highest risk industries were meat and poultry processing-related (23.48/1,000) and the manufacturing of airplanes (9.06/1,000). RSI claims were significantly more costly (+5,569 vs. +2,480, p < 0.0001) and required more time loss (71.4 vs. 33.6 d, p < 0.0001) than similar musculoskeletal non-RSI claims. Similarly, RSI claimants were less likely to return to the same job (67.3% vs. 81.0%, p < 0.0001) than non-RSI claimants. It was concluded that the cost and severity of RSI claims militate for intensified preventive measures.
对加拿大曼尼托巴省工人赔偿委员会（WCB）的索赔进行的一项审查发现，1991年估计有382例上肢重复性劳损（RSI）索赔，占所有被接受的上肢WCB索赔的9.3%。肌腱炎和腕管综合征（CTS）是最常见的诊断（分别为27.5%和19.3%）。RSI的发病率在性别和年龄上没有显著差异。RSI索赔者在提出赔偿申请之前平均已经出现症状8个月。虽然文职职业占所有上肢RSI索赔的13.6%，但这些职业的RSI发病率较低（0.67/1000名工人），相比之下，RSI发病率最高的职业是：食品、饮料及相关加工业（14.68/1000名工人）以及金属制品制造、组装和修理业（9.32/1000）。风险最高的行业是肉类和家禽加工相关行业（23.48/1000）和飞机制造业（9.06/1000）。与类似的肌肉骨骼非RSI索赔相比，RSI索赔的成本显著更高（+5569美元对+2480美元，p<0.0001），并且需要更多的误工时间（71.4天对33.6天，p<0.0001）。同样，与非RSI索赔者相比，RSI索赔者回到原工作岗位的可能性更小（67.3%对81.0%，p<0.0001）。研究得出结论，RSI索赔的成本和严重性促使采取强化预防措施。
