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The pathologic characteristics of breast cancer in China and its shift during 1999–2008: A national‐wide multicenter cross‐sectional image over 10 years
Author(s) -
Zheng Shan,
Bai JingQiao,
Li Jing,
Fan JinHu,
Pang Yi,
Song QingKun,
Huang Rong,
Yang HongJian,
Xu Feng,
Lu Ning,
Qiao YouLin
Publication year - 2012
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.27513
Subject(s) - breast cancer , medicine , malignancy , cancer , estrogen receptor , oncology , ductal carcinoma , population , stage (stratigraphy) , progesterone receptor , gynecology , pathology , biology , paleontology , environmental health
In China, breast cancer is currently the most common malignancy and the sixth leading cause of cancer death in women. But, the characteristics of breast cancer in the whole population are not determined. The aim of this study was to perform a detailed study on pathologic characteristics of breast cancer representing the whole population in China during 1999–2008 and to compare the difference in invasive breast cancer between the Western and Chinese. We randomly collected 4,211 inpatient at seven hospitals in representative geographical regions of China during 1999–2008. All the hospitals had the ability of comprehensive cancer treatment. The pathologic characters including estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2) status were surveyed. The shift of pathologic characters was evaluated and the data from China were also compared with those of the Western, both using Chi‐square test. We found as follow. ( i ) The median age of the patients was 48 years and showed the similar characters of Asia. ( ii ) Breast cancer in China showed more invasive ductal carcinoma with larger tumor size, later stage, lower ER and PR expression and higher HER2 overexpression than those in the Western ( p < 0.001). ( iii ) Both tumor size and stage at diagnosis decreased year by year ( p < 0.001). Breast cancer in China showed more aggressive behavior than those in western countries, although tumor size and stage at diagnosis decreased by year during 1999–2008. We addressed the urgent needs for employ race‐specific breast cancer screen, diagnosis methods, and therapeutic models in China.

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