期刊
JAPANESE JOURNAL OF CLINICAL ONCOLOGY
卷 32, 期 3, 页码 108-109出版社
OXFORD UNIV PRESS
DOI: 10.1093/jjco/hyf025
关键词
breast cancer; TNM classification
类别
The objectives of this study were to investigate the long-term results of T1a, T1b and T1c Japanese invasive breast cancer patients defined by the UICC classification. The subjects were T1a (38), T1b (256) and T1c (1405) Japanese invasive breast cancer patients. Ten- and 20-year disease-free survival (DFS) and overall survival (OS) rates were analyzed by the UICC T1 subgroups (T1a, T1b, T1c). At 10 years, the respective DFS and OS rates of T1a, T1b and TIC patients were 91.9 and 91.9%, 86.1 and 86.8% and 82.4 and 83.9%, respectively. At 20 years, the respective DFS and OS rates of TI a, T1b and TIC patients were 70.7 and 70.7%, 76.7 and 76.7% and 69.1 and 70.1%. The differences of DFS and OS between TI a and TIC patients were not statistically significant. The DFS of patients with TIC breast carcinoma showed a statistically significant difference from that of T1b patients (p = 0.03). The validation of the T1 subgroup classification in Japanese breast cancer patients was confirmed, particularly for the T1 c subgroup.
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