Friis S, Storm H H
Danish Cancer Registry, Institute of Cancer Epidemiology, København.
Eur J Cancer. 1993;29A(4):538-44. doi: 10.1016/s0959-8049(05)80147-9.
Urban and rural cancer incidence in Denmark in 1943-1987 was analysed. A consistent urban excess was found for all sites combined for individuals of each sex, irrespective of age at diagnosis. The capital:rural incidence ratio was 1.42 for men and 1.25 for women, and these ratios were not affected to any great extent using another definition of urban areas. Urban:rural ratios were highest for cancers of the respiratory, urinary and upper digestive tracts. The differences cannot be explained by tobacco and alcohol consumption alone. Other risk factors linked to urbanisation may contribute importantly to the "urban factor", and analytical studies of data at an individual level are required to establish their relative importance. Our findings contradict the generally accepted view that there is no urban-rural difference in cancer incidence in the relatively small, homogeneous population of Denmark.
对1943年至1987年丹麦城乡癌症发病率进行了分析。结果发现，无论诊断时的年龄如何，各性别个体所有部位的癌症综合发病率城市均持续高于农村。男性的首都与农村发病率之比为1.42，女性为1.25，采用另一种城市地区定义时，这些比率并未受到很大影响。呼吸道、泌尿和上消化道癌症的城乡比率最高。这些差异不能仅用烟草和酒精消费来解释。与城市化相关的其他风险因素可能对“城市因素”有重要贡献，需要对个体层面的数据进行分析研究，以确定它们的相对重要性。我们的研究结果与普遍接受的观点相矛盾，即在丹麦相对较小、同质化的人群中，癌症发病率不存在城乡差异。
