Olsen J, Sabroe S, Lajer M
Eur J Cancer Clin Oncol. 1984 May;20(5):639-43. doi: 10.1016/0277-5379(84)90010-5.
The purpose of the study was to examine the occupational history of laryngeal cancer patients, and especially their exposure to welding. The investigation was conducted as a case-control study where all newly diagnosed patients less than 75 yr of age with cancer of the larynx in Denmark during March 1980 to March 1982 were selected as cases. For each case, four age- and sex-matched controls were identified from the municipal person register in which the case was listed. Data were collected partly by means of questionnaires and partly by abstracting information from the medical records of cases. Workers exposed to welding fumes had a slightly increased risk of cancer of the larynx, most predominantly of cancer of the subglottic area.
该研究的目的是调查喉癌患者的职业史，尤其是他们接触焊接的情况。该调查作为一项病例对照研究进行，选取了1980年3月至1982年3月期间丹麦所有新诊断出的年龄小于75岁的喉癌患者作为病例。对于每个病例，从列出该病例的市政人口登记册中确定四名年龄和性别匹配的对照。数据部分通过问卷调查收集，部分通过提取病例病历中的信息收集。接触焊接烟雾的工人患喉癌的风险略有增加，最主要是声门下区癌症。
