Changes in Body Mass Index Are Associated with Squamous Cell Carcinomas of Oral Cavity, Oropharynx and Larynx: A Case-Control Study in Brazil.

Head and neck cancer (HNC) significantly impacts nutritional status because the tumor limits swallowing function. In this sense, it is important to monitor the nutritional status throughout the life of any individual. A multicenter case-control study was carried out to analyze the BMI at 30 years of age, two years before diagnosis and at the time of diagnosis of individuals with oral cavity, oropharynx, and larynx cancers.

Consumption of minimally processed foods as protective factors in the genesis of squamous cell carcinoma of the head and neck in Brazil.

Background: Head and neck cancer (HNC) is the sixth most common cancer, and two-fifths of cases could be avoided by changing lifestyle and eating habits.

Methods: This multicenter case-control study was conducted under the International Consortium on Head and Neck Cancer and Genetic Epidemiology, coordinated by the International Agency for Research on Cancer. This consortium evaluated associations between minimally processed food consumption and the risk of HNC in three Brazilian states.

Validation of the Washington University Head and Neck Comorbidity Index in a cohort of older patients.

Objectives: To validate the prognostic ability of the Washington University Head and Neck Comorbidity Index (WUHNCI) relative to 5-year survival in a cohort of older patients with head and neck cancer and to compare it with that of the Adult Comorbidity Evaluation 27 (ACE-27).

Design: Validation study.

Setting: Academic research.

Factors that influence treatment decision in older patients with resectable head and neck cancer.

Objectives: To find clinical factors related to administration of substandard treatment in older patients with head and neck cancer.

Study Design: Historic cohort.

Methods: Patients of 70 years of age of older with diagnosis of resectable head and neck cancer were included.

Comorbidity is a prognostic factor in elderly patients with head and neck cancer.

Background: The number of aged patients with head and neck cancer is increasing. Comorbidities are common in this population. It is necessary to evaluate the effect of comorbidities as measured with the ACE-27 index on recurrence and survival of elderly patients with head and neck cancer, adjusting by other prognostic factors as age, clinical stage and functional status index.