挪威锅炉焊工的癌症发病率。
Incidence of cancer among Norwegian boiler welders.
作者信息
Danielsen T E, Langård S, Andersen A
机构信息
Department of Occupational and Environmental Medicine, Telemark Central Hospital, Skien, Norway.
出版信息
Occup Environ Med. 1996 Apr;53(4):231-4. doi: 10.1136/oem.53.4.231.
OBJECTIVES
The cancer incidence among 2957 boiler welders was investigated. The subjects were registered electrical welders from 1942 to 1981. A subcohort of 606 stainless steel welders was studied separately.
METHODS
The investigation was a historical prospective cohort study based on a national registry. The loss of follow up was 4.9%.
RESULTS
There were 625 deaths (659 expected). There were 269 cancer cases (264 expected). An excess of lung cancer was found; 50 cases v 37.5 expected. There were three cases of pleural mesotheliomas v 1.1 expected. The subcohort of stainless steel welders had six cases of lung cancer v 5.8 expected, and one case of pleural mesothelioma v 0.2 expected.
CONCLUSIONS
The welders in the study were assumed to represent a qualified work force. These welders had a small excess risk of lung cancer. The excess risk did not seem to be associated with stainless steel welding. Smoking and asbestos exposure were potential confounders.
目的
对2957名锅炉焊工的癌症发病率进行调查。研究对象为1942年至1981年登记在册的电焊工。对606名不锈钢焊工组成的一个亚队列进行了单独研究。
方法
该调查是一项基于国家登记处的历史性前瞻性队列研究。随访失访率为4.9%。
结果
有625人死亡（预期659人）。有269例癌症病例（预期264例）。发现肺癌病例过多；实际50例，预期37.5例。有3例胸膜间皮瘤，预期1.1例。不锈钢焊工亚队列中有6例肺癌，预期5.8例，1例胸膜间皮瘤，预期0.2例。
结论
研究中的焊工被认为代表了一支合格的劳动力队伍。这些焊工患肺癌的风险略有增加。这种额外风险似乎与不锈钢焊接无关。吸烟和石棉暴露是潜在的混杂因素。
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