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Obstet Gynecol. 1984 May;63(5):714-8.
Mass screening programs for cancer of the cervix were introduced at different times and to different extents in the Scandinavian countries. Iceland and Finland introduced nationwide screening programs in the early 1960s. Ten years after their introduction, marked reductions in incidence and mortality of invasive cervical cancer were observed, seen specifically in the age groups to which screening was targeted. In Sweden and Denmark, mass screening was introduced on a county basis, and changes in incidence and death rates from cervical cancer were recorded which reflected the degree to which organized mass screening had been introduced. These data demonstrate that mass screening scheduled every two to five years can reduce the incidence of invasive cervical cancer by 80%. No evidence is available from Scandinavia that more frequent screening reduces the risk further.
斯堪的纳维亚国家在不同时间、以不同程度引入了宫颈癌大规模筛查项目。冰岛和芬兰在20世纪60年代初引入了全国性筛查项目。在引入后的十年里，观察到浸润性宫颈癌的发病率和死亡率显著降低，尤其在筛查所针对的年龄组中。在瑞典和丹麦，大规模筛查是在县级层面开展的，记录了宫颈癌发病率和死亡率的变化，这些变化反映了有组织的大规模筛查的推行程度。这些数据表明，每两到五年进行一次大规模筛查可将浸润性宫颈癌的发病率降低80%。斯堪的纳维亚地区没有证据表明更频繁的筛查能进一步降低风险。
