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在全球范围内,无论是发达国家还是发展中国家,乳腺癌是女性最常见的癌症。2012年,估计全球约有167万病例(2012 GLOBOCAN)。从欧洲国家的96/10万到非洲的27/10万,不同地区发病率不同。2012年,乳腺癌是欠发达地区的主要死亡原因(32.4万例),是发达地区的第二大死因(19.8万例)。尽管发病率在发达国家已经稳定,而在发展中国家仍在不断上升。发病率增加的原因是西方化的危险因素,如初潮年龄提前、绝经年龄推迟、生育孩次减少、首胎生育年龄后推、哺乳期缩短、久坐的生活方式等,均为乳腺癌的高危因素。乳腺癌诊断年龄的峰值在
Globally, breast cancer is the most common form of cancer in women, both in developed and developing countries. In 2012, an estimated 1.67 million cases (2012 GLOBOCAN) worldwide. From 96/10 million in European countries to 27/10 million in Africa, the incidence is different in different regions. In 2012, breast cancer was the leading cause of death in less developed regions (324,000 cases), the second leading cause of death in the developed regions (198,000 cases). Although the incidence has stabilized in developed countries, it is still rising in developing countries. The incidence increased due to Western risk factors, such as early menarche age, postmenopausal age delayed, reduced childbirth, after the first childbearing age postponed, shorten the lactating period, sedentary lifestyles, etc., are high risk of breast cancer factor. The peak age of breast cancer diagnosis is