Dickinson Heather O, Hammal D M, Bithell J F, Parker L
North of England Children's Cancer Research Unit, Department of Child Health, University of Newcastle, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK.
Br J Cancer. 2002 May 6;86(9):1411-3. doi: 10.1038/sj.bjc.6600275.
We found an increased risk of childhood leukaemia with higher levels of inward migration, particularly from outside the region (rate ratio=1.9, 95%CI: 1.2-2.9, P<0.01). This significant effect was observed only in urban areas, although a marked but non-significant effect was seen in affluent, rural areas.
我们发现，随着向内迁移水平的提高，儿童白血病风险增加，尤其是来自该地区以外的迁移（率比=1.9，95%置信区间：1.2-2.9，P<0.01）。仅在城市地区观察到这种显著影响，尽管在富裕的农村地区也观察到了明显但不显著的影响。
