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Br J Ind Med. 1987 May;44(5):327-36. doi: 10.1136/oem.44.5.327.
A medical, psychological, and sociological study of 391 male employees in a Swedish pulp and paper industry was performed in 1961. Factors associated with back pain and back abnormality were investigated. Univariate analyses showed associations of back pain with occupational status, low education, duration of employment, low performance on cognitive tests, and neuroticism. Back abnormalities evaluated on the basis of physical examination showed in principle the same associations but the strength as well as the significances were stronger. Multiple logistic regression analyses using data for manual workers showed that neuroticism and duration of employment were directly associated with back pain. The same two variables and low performance on one of the psychological tests were directly associated with back abnormalities. Age showed no direct association with back pain or back abnormalities. Strong associations between back pain and back abnormalities with both perceived health and general working capacity and the doctor's evaluation in the same areas were demonstrated.
1961年，对瑞典一家纸浆和造纸厂的391名男性员工进行了医学、心理学和社会学研究。研究了与背痛和背部异常相关的因素。单因素分析显示，背痛与职业地位、低学历、工作年限、认知测试成绩低以及神经质有关。基于体格检查评估的背部异常原则上显示出相同的关联，但强度和显著性更强。对体力劳动者的数据进行的多因素逻辑回归分析表明，神经质和工作年限与背痛直接相关。同样的这两个变量以及一项心理测试中的低成绩与背部异常直接相关。年龄与背痛或背部异常没有直接关联。研究表明，背痛和背部异常与感知健康、总体工作能力以及医生在相同领域的评估之间存在强烈关联。
