最近,瑞典在国家癌症登记的基础上,调查了1960～1978年中诊断为乳腺癌的57068名患者。据报告45～49岁诊断并接受治疗的患者预后最佳。对比各年龄组的相对生存率发现,该年龄组在观察期的任何阶段(2年、5年、10年、15年)都比30岁以下年龄组的生存率高7.6～12.9％,49岁以上的一组患者生存率降低,而 Recently, based on the National Cancer Registry, Sweden has investigated 57068 patients diagnosed with breast cancer from 1960 to 1978. It is reported that patients aged 45 to 49 who are diagnosed and treated have the best prognosis. Comparing the relative survival rates of various age groups, it was found that the age group was higher than the 30-year-old age group at any stage of the observation period (2 years, 5 years, 10 years, and 15 years) by 7.6 to 12.9%, 49 years old. The survival rate of the above group of patients is reduced, and