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Prognostic role of body mass index is different according to menopausal status and tumor subtype in breast cancer patients

Cited 9 time in Web of Science Cited 9 time in Scopus
Authors

Kim, Jung Youn; Lee, Dae-Won; Lee, Kyung-Hun; Min, Ahrum; Ryu, Han Suk; Lee, Han-Byoel; Moon, Hyeong-Gon; Kim, Tae-Yong; Han, Sae-Won; Oh, Do-Youn; Han, Wonshik; Park, In Ae; Noh, Dong-Young; Im, Seock-Ah; Kim, Sukil

Issue Date
2019-07
Publisher
Kluwer Academic Publishers
Citation
Breast Cancer Research and Treatment, Vol.176 No.2, pp.453-460
Abstract
PurposeAlthough controversial, obesity and underweight may have a negative impact on breast cancer outcome. However, the relationship between body mass index (BMI) and breast cancer outcomes according to tumor subtype and menopausal status remains unclear.MethodsThis study investigated the association between BMI and breast cancer outcome in stage I-III breast cancer patients. The relationships were further evaluated according to tumor subtype and menopausal status.ResultsA total of 5919 patients, 3475 (58.7%) hormone receptor (HR)(+) human epidermal growth factor receptor 2 (HER2)(-), 608 (10.3%) HR(+)HER2(+), 621 (10.5%) HR(-)HER2(+), and 1079 (18.2%) HR(-)HER2(-) were included. Underweight and obesity had a negative impact on relapse-free survival but did not affect overall survival. Importantly, the prognostic role of BMI was different according to tumor subtype and menopausal status. In HR(+)HER2(-) patients, underweight was associated with poor relapse-free survival and overall survival in pre-menopausal women. In contrast, obesity had negative impact on relapse-free survival and overall survival in HR(+)HER2(-) post-menopausal patients. Underweight may have a negative prognostic role in HR(+)HER2(+) patients. However, BMI did not impact the outcome of HR(-)HER2(+) and HR(-)HER2(-) patients.ConclusionsThe impact of BMI on breast cancer outcome was dependent on tumor subtype and menopausal status. In HR(+)HER2(-) patients, underweight and obesity had a negative prognostic role in pre-menopausal and post-menopausal women, respectively. These findings in Asian population should be further evaluated and compared in Western population.
ISSN
0167-6806
URI
https://hdl.handle.net/10371/177119
DOI
https://doi.org/10.1007/s10549-019-05249-1
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  • College of Medicine
  • Department of Medicine
Research Area Clinical Medicine

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