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Epidemiology and prognosis of breast cancer in young women

	author = {Hussein A. Assi and Katia E. Khoury and Haifa Dbouk and Lana E. Khalil and Tarek H. Mouhieddine and Nagi S. El Saghir},
	title = {Epidemiology and prognosis of breast cancer in young women},
	journal = {Journal of Thoracic Disease},
	volume = {5},
	number = {Suppl 1},
	year = {2013},
	keywords = {},
	abstract = {Breast cancer is the most common malignancy in women with 6.6% of cases diagnosed in young women below the age of 40. Despite variances in risk factors, Age Standardized Incidence Rates of breast cancer in young women vary little between different countries. Review of modifiable risk factors shows that long-term use of oral contraceptives, low body mass index (BMI) and high animal fat diet consumption are associated with increased risk of premenopausal breast cancer. Decreased physical activity and obesity increase risks of breast cancer in postmenopausal women, but data on premenopausal women rather shows that high BMI is associated with decreased risk of breast cancer. Non-modifiable risk factors such as family history and genetic mutations do account for increased risks of breast cancer in premenopausal women. Breast cancer in young women is associated with adverse pathological factors, including high grade tumors, hormone receptor negativity, and HER2 overexpression. This has a significant negative impact on the rate of local recurrence and overall survival. Moreover, younger women often tend to present with breast cancer at a later stage than their older counterparts, which further explains worse outcome. Despite these factors, age per se is still being advocated as an independent role player in the prognosis. This entails more aggressive treatment modalities and the need for closer monitoring and follow-up.},
	issn = {2077-6624},	url = {}