Basic study to improve the accuracy of mammography screening

为了评估钼靶摄影筛查的准确性，我们采用基于人群的癌症登记方法，将乳腺癌的临床分期和死亡率分为四组，分别为筛查检出组、钼靶摄影间隔癌筛查组、临床乳房检查检出组和自我检出组。钼靶摄影检测组死亡率最低，筛查检测组次之。这项研究证实了乳房X光检查的有效性。

In order to assess the accuracy of mammography screening, we investigate the clinical stage and mortality of breast cancer using a population-based cancer registry as four groups, screening detected group, interval cancer of mammography screening group, clinical breast examination detected group, and self detected group, respectively. Mammography detected group shows the lowest mortality among four groups, and screening detected group was the second. Usefulness of mammography screening was confirmed in this study.