Cancer risk by education in Iceland; a census-based cohort study
Cancer risk by education in Iceland; a census-based cohort study
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DOI：
10.1080/02841860801888773
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发表时间：
2008-01-01
期刊：
影响因子：
3.1
通讯作者：
Tryggvadottir, Laufey
中科院分区：
文献类型：
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作者：
Vidarsdottir, Halldora;Gunnarsdottir, Holmfridur K.;Tryggvadottir, Laufey
早期研究表明，许多国家的癌症风险与教育水平有关。教育与癌症风险之间的关系尚未在少数但种族同质的冰岛人口中进行研究，这些人口被认为在社会公平方面表现出色。材料和方法。我们对 1981 年冰岛人口普查中年龄在 20-64 岁之间的 60 194 名男性和 58 505 名女性进行了跟踪研究。人口普查的教育信息分为三个教育组，并与基于人口的冰岛癌症登记处联系起来。计算 1982 年至 2004 年期间的标准化发病率 (SIR)。 结果。我们发现教育水平与癌症风险之间存在显着关联。在受过高等教育的男性中，前列腺癌（SIR=1.17，95% CI 1.05-1.30）和黑色素瘤（SIR=1.41，95% CI 1.00-1.93）的 SIR 升高，肺癌（SIR=0.72，95% CI 0.59-0.87）和胃癌（SIR=0.67，95% CI 0.59-0.87）的 SIR 降低， 95% CI 0.48-0.90）。受过高等教育的女性患乳腺癌的风险较高（SIR=1.19，95% CI 1.07-1.33），而患肺癌的风险较低（SIR=0.49，95% CI 0.36-0.65）。教育水平的提高与宫颈癌风险的降低相关（p 趋势=0.017）。讨论。本研究中发现的教育与癌症发病率之间的关联与其他国家的观察结果相似，可能反映了社会地位与某些癌症危险因素之间的一致性。我们的研究证实了冰岛存在与健康相关的社会经济差异，在规划健康促进计划时必须考虑到这一差异。
Earlier studies have shown that cancer risk is related to educational level in many countries. The relationship between education and cancer risk has not been studied in the small, but ethnically homogenous, Icelandic population postulated to be outstanding as regards social equity. Material and methods. We conducted a follow-up study of a cohort of 60 194 males and 58 505 females aged 20-64 at census 1981 in Iceland. Information on education from the census was classified into three educational groups and linked with the population-based Icelandic Cancer Registry. Standardized incidence ratios (SIRs) were calculated for the period 1982 to 2004. Results. We found a significant association between educational level and cancer risk. Among males with academic education, the SIR was elevated for prostate cancer (SIR=1.17, 95% CI 1.05-1.30) and melanoma (SIR=1.41, 95% CI 1.00-1.93) and lowered for cancers of the lung (SIR=0.72, 95% CI 0.59-0.87) and stomach (SIR=0.67, 95% CI 0.48-0.90). Women with academic education had an increased risk of breast cancer (SIR=1.19, 95% CI 1.07-1.33) and a decreased risk of lung cancer (SIR=0.49, 95% CI 0.36-0.65). Increasing educational level was associated with a lowered risk of cervical cancer (p trend=0.017). Discussion. The association between education and cancer incidence seen in this study resembles observations from other countries and probably reflects concordance between social status and certain risk factors for cancer. Our study confirms health-related socioeconomic differences in Iceland and must be taken into account when programmes for health promotion are planned.