Breast cancer in young women of Chinese Han population: A retrospective study of patients under 25 years

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• 作者：Wenyan Wang^a ; ¹ ; Xin Wang^a ; ¹ ; Jiaqi Liu^a ; ¹ ; Jidong Gao^a ; Jie Wang^a ; Xiang Wang^a ; ^{xiangw@vip.sina.com" class="auth_mail" title="E-mail the corresponding author} ; Dongbing Zhao^b ; ^{dbzhao2003@sina.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Breast neoplasm ; Young age ; Prognosis ; Subtype
• 刊名：Pathology - Research and Practice
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：212
• 期：11
• 页码：1015-1020
• 全文大小：1283 K

文摘

Breast cancer has aggressive clinical and pathological features in younger women and is characterized by poorer prognosis than in older women. However, data on women <25 years are limited.

Objective

The aim of the present study was to evaluate the different pathological characteristics and prognostic factors in Chinese women with breast cancer <25 years at the time of diagnosis.

Methods

This retrospective study included 94 patients (aged <25) of Chinese Han population with operable breast cancer at the National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences between January 1, 2000 and September 30, 2015. Univariate and multivariate Cox regression analysis were performed. The median follow-up duration was 64 months (range, 11–200 months).

Results

The HER2-positive and triple-negative groups had a higher T (P = 0.002) and N stage than the luminal A group (P = 0.014). The 5-year overall survival (OS) was 90.4%, and the disease-free survival (DFS) was 74.5%. The 5-year DFS varied among the four groups were 94.1 vs. 76.9 vs. 45.5 vs. 66.7%, respectively; P = 0.009. Multivariate analysis showed that only estrogen receptor (ER) status was a significant predictor of OS and DFS [Hazard ratio (HR) = 5.3, 95% confidence interval (CI) = 1.11-25.27, P = 0.036; HR = 2.712, 95%CI = 1.27-5.80, P = 0.01).

Conclusion

HER2-positive and triple-negative breast cancer are more likely to have poor prognosis in patients <25 years. Hence, ER status may be identified as an independent prognostic factor for predicting young women with breast cancer.