S-Space College of Medicine/School of Medicine (의과대학/대학원) Surgery (외과학전공) Journal Papers (저널논문_외과학전공)
Underweight and Breast Cancer Recurrence and Death: A Report From the Korean Breast Cancer Society
Cited 75 time in Web of Science Cited 81 time in Scopus
- Issue Date
- AMER SOC CLINICAL ONCOLOGY
- JOURNAL OF CLINICAL ONCOLOGY; Vol.27 35; 5899-5905
- Purpose The association between body mass index and breast cancer outcome is controversial. Furthermore, the impact of underweight on breast cancer recurrence and death has not been adequately addressed. Patients and Methods We investigated this issue using a large nationwide database of 24,698 Korean breast cancer patients. The association between body weight status and breast cancer recurrence was further explored using a single-institution database containing information on 4,345 patients. Results The results from the nationwide database showed significantly lower overall survival (OS) and breast cancer-specific survival (BCSS) in underweight patients compared with survival in patients of normal weight after adjusting for known prognostic factors such as age, tumor size, lymph node metastasis, hormone receptor status, histologic grade, and lymphovascular invasion (hazard ratio [HR], 1.48; 95% CI, 1.15 to 1.90 for OS; HR, 1.49; 95% CI, 1.15 to 1.93 for BCSS), which were not observed in obese patients. In an analysis of recurrence data from the single institution, underweight women had a significantly higher risk of both distant metastasis and local recurrence of breast cancer (HR, 1.93; 95% CI, 1.04 to 3.58 and HR, 5.13; 95% CI, 2.66 to 9.90, respectively). Conclusion Our study suggests that underweight should be considered to be a high risk factor for death and recurrence after breast cancer surgery, especially in Asian breast cancer patients.
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