Aas Gjøril Bergva, Aagnes Bjarte, Strand Leif Age, Grimsrud Tom K
Cancer Registry of Norway, Oslo, Norway.
Scand J Work Environ Health. 2009 Oct;35(5):397-9. doi: 10.5271/sjweh.1341. Epub 2009 Jun 25.
The aim of this communication was to report the overall incidence of cancer in a cohort of male Norwegian offshore oil workers.
The Offshore Cohort was comprised of >25,000 men who were employed at installations in the North Sea in the period 1965-1999, and who responded to a questionnaire that included work history offshore, other occupational experience, education, leisure-time activities, and lifestyle factors. Calculating standardized incidence ratios (SIR), we compared the number of prospective incident cancers diagnosed between 1999 and 2005 with those expected for age-, gender- and period-specific rates in the general Norwegian population.
The overall cancer incidence did not differ from that of the reference population [SIR=1.0, 95% -confidence interval (95% CI) 1.0-1.1, N=695]. There were indications of excess risks of acute myeloid leukemia (SIR=2.0, 95% CI 1.0-3.7) and cancer of the pleura (SIR=2.2, 95% CI 0.9-4.6). No data on occupational history was used in these preliminary analyses.
The cohort was relatively young and an extended observation period would be important for in-depth analyses. The suggested excess of leukemia and cancer of the pleura may be linked to occupational exposure during employment offshore; this issue needs to be addressed in further studies.
本报告旨在阐述挪威男性近海石油工人队列中癌症的总体发病率。
近海队列由25000多名男性组成，他们于1965年至1999年期间受雇于北海的设施，并对一份包含近海工作经历、其他职业经历、教育程度、休闲活动和生活方式因素的问卷做出了回应。通过计算标准化发病比（SIR），我们将1999年至2005年期间诊断出的预期癌症病例数与挪威普通人群按年龄、性别和时期特定发病率预期的病例数进行了比较。
总体癌症发病率与参考人群无差异[SIR = 1.0，95%置信区间（95%CI）1.0 - 1.1，N = 695]。有迹象表明急性髓系白血病（SIR = 2.0，95%CI 1.0 - 3.7）和胸膜癌（SIR = 2.2，95%CI 0.9 - 4.6）存在超额风险。这些初步分析未使用职业史数据。
该队列相对年轻，延长观察期对于深入分析很重要。所提示的白血病和胸膜癌超额发病率可能与近海工作期间的职业暴露有关；这一问题需要在进一步研究中加以解决。
