Journal
BMC CANCER
Volume 4, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1471-2407-4-82
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Background: The incidence of breast cancer in young women (age<35) is low. The biology of the disease in this age group is poorly understood, and there are conflicting data regarding the prognosis for these women compared to older patients. Methods: We retrospectively analyzed 2040 consecutive primary invasive breast cancer patients who underwent surgical procedures at our institution between 1990 and 1999. The younger age group was defined as patients aged <35 years at the time of diagnosis. The clinicopathological characteristics and treatment outcomes were compared between younger and older age groups. Results: A total of 256 (12.5%) patients were aged <35. There was a significantly higher incidence of nuclear grade 3 and medullary histological-type tumors in younger patients compared to older patients. Axillary lymph node status, T stage, histological grade, c-erbB2 expression and estrogen receptor status did not differ significantly between the two age groups. Younger patients had a greater probability of recurrence and death at all time periods. Although there was no significant difference in disease-free survival between the two age groups in lymph node-negative patients, the younger group showed worse prognosis among lymph node-positive patients (p<0.001). In multivariate analysis, young age remained a significant predictor of recurrence (p=0.010). Conclusion: Young age(<35) is an independent risk factor for relapse in operable breast cancer patients.
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