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Prognostic significance of body mass index before treatment for head and neck cancer
Author(s) -
Takenaka Yukinori,
Takemoto Norihiko,
Nakahara Susumu,
Yamamoto Yoshifumi,
Yasui Toshimichi,
Hanamoto Atshushi,
Fukusumi Takahito,
Michiba Takahiro,
Cho Hironori,
Yamamoto Masashi,
Inohara Hidenori
Publication year - 2015
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.23785
Subject(s) - medicine , underweight , body mass index , head and neck cancer , overweight , proportional hazards model , hazard ratio , stage (stratigraphy) , cancer , retrospective cohort study , oncology , radiation therapy , surgery , confidence interval , paleontology , biology
Background Patients with head and neck cancer frequently experience malnutrition. The purpose of this study was to examine the impact of nutritional status on prognosis and its association with treatment modalities. Methods This retrospective study included 706 patients with head and neck cancer diagnosed between 2004 and 2012. The effects of pretreatment body mass index (BMI) on overall survival were analyzed using the Kaplan–Meier method and Cox regression model. Results BMI ranged from 11.6 to 38.0 kg/m 2 (median, 21.5) and was a prognostic factor for survival, independent of primary site, and tumor stage. The 5‐year survival rates for underweight, normal, and overweight groups were 32.2%, 62.7%, and 73.5%, respectively. The hazard ratios of BMI in the surgery, chemoradiation, and radiation groups were 0.95, 0.91, and 0.79, respectively, and the latter two were statistically significant. Conclusion The impact of BMI is determined by the types of cancer treatment. Pretreatment BMI should be considered while deciding treatment. © 2014 Wiley Periodicals, Inc. Head Neck 37: 1518–1523, 2015