Background
People with head and neck cancer (HNC) have higher comorbidity levels but it remains unclear if pre-treatment comorbidity is an independent prognosticator in HNC.
Methods
Survival analyses were performed using data from participants in a UK multicentre cohort study with cancers of the oral cavity (n = 668), oropharynx (n = 1,074) and larynx (n = 530). Survival analyses were incrementally adjusted for age, gender, marital status, income, education, stage, alcohol and smoking.
Results
After adjusting for demographic, clinical and behavioural confounders, higher baseline comorbidity was associated with reduced overall survival (mild comorbidity HR 1.4, 95% CI 1.1, 1.7; moderate comorbidity HR 1.7, 95% CI 1.3, 2.2; severe comorbidity HR 2.8, 95% CI 1.9, 4.; p-trend<.001).
Conclusions
Our findings suggest that comorbidity is an independent prognosticator for overall survival in HNC. Comorbid illnesses should be considered in the assessment and treatment planning of people with HNC.