Fascioli S, Capocaccia R, Mariotti S
Laboratorio di Epidemiologia e Biostatistica, Istituto Superiore di Sanità, Rome, Italy.
Int J Epidemiol. 1995 Feb;24(1):8-18. doi: 10.1093/ije/24.1.8.
METHODS. Mortality rates for four types of cancer (stomach, colorectal, lung, and breast cancer) in migrant populations were compared to those of individuals who still resided in the political region in which they were born. The effects on mortality rates of place of birth and of place of residence were studied, comparing different regression models. RESULTS. Overall, people who were born in the South and who later migrated had significantly higher mortality rates than the southern population, but lower than the population in the area of residence, for most cancers. Place of birth and place of residence showed different power in explaining the observed mortality rates for different cancer sites: place of birth was a stronger predictor for stomach and breast cancers, while residence was a stronger predictor for lung and colorectal cancers. The status of 'migrant' was found to be an overall risk factor. The compatibility of the results obtained with different aetiological hypotheses is discussed.
方法。将移民人群中四种癌症（胃癌、结直肠癌、肺癌和乳腺癌）的死亡率与仍居住在其出生地所在政治区域的人群的死亡率进行比较。研究了出生地和居住地对死亡率的影响，比较了不同的回归模型。结果。总体而言，出生在南方后来移民的人群，对于大多数癌症来说，其死亡率显著高于南方人群，但低于其居住地区的人群。出生地和居住地在解释不同癌症部位观察到的死亡率方面显示出不同的作用：出生地对胃癌和乳腺癌是更强的预测因素，而居住地对肺癌和结直肠癌是更强的预测因素。“移民”身份被发现是一个总体风险因素。讨论了所得结果与不同病因假说的兼容性。
