Breast cancer prognosis is crucial for effective treatment, with the disease more common in women over 40 years old but rare under 40 years old, where less than 5 percent of cases occur in the U.S. Studies indicate a worse prognosis in younger women, which varies by ethnicity. Breast cancers are classified based on receptors like estrogen, progesterone, and HER2. Triple-negative breast cancer (TNBC), lacking these receptors, accounts for about 15 percent of cases and is more prevalent in younger patients, often resulting in poorer outcomes. Nevertheless, the impact of age on TNBC prognosis remains unclear. Factors like age, race, tumor grade, size, and lymph node status are studied for their role in TNBC's clinical outcomes, but current research is inconclusive about age-related differences. This study uses SEER data set to examine the influence of younger age on survivability in TNBC patients, aiming to determine if age is a significant prognostic factor. Our experimental results on SEER dataset confirm the existing research reports that TNBC patients have worse prognosis compared to non-TNBC based on age. Our main goal was to investigate whether younger age has any significance on the survivability of TNBC patients. Experimental results do not show that younger age has any significance on the prognosis and survival rate of the TNBC patients

翻译：乳腺癌预后对有效治疗至关重要，该疾病在40岁以上女性中更常见，但40岁以下女性中罕见，美国确诊病例中仅占不到5%。研究表明年轻女性预后较差，且因种族而异。乳腺癌根据雌激素、孕激素和HER2等受体进行分类。三阴性乳腺癌（TNBC）缺乏这些受体，约占确诊病例的15%，在年轻患者中更为普遍，常导致更差的预后。然而，年龄对TNBC预后的影响尚不明确。年龄、种族、肿瘤分级、大小和淋巴结状态等因素在TNBC临床结局中的作用已被研究，但当前研究关于年龄相关差异尚无定论。本研究使用SEER数据集探讨年轻年龄对TNBC患者生存率的影响，旨在确定年龄是否是重要的预后因素。我们在SEER数据集上的实验结果证实了现有研究报告：基于年龄分析，TNBC患者预后较非TNBC患者更差。我们的主要目标是探究年轻年龄是否对TNBC患者的生存率具有显著性影响。实验结果表明，年轻年龄对TNBC患者的预后和生存率无显著性影响。