Age-specific incidence and treatment patterns of head and neck cancer in the Netherlands-A cohort study.

OBJECTIVES: To explore the incidence and treatment pattern of head and neck cancer in different age groups.

DESIGN: Cohort study.

SETTING: Netherlands Cancer Registry.

PARTICIPANTS: All new primary head and neck cancer cases diagnosed between 2010 and 2014 were included and categorised into different age groups.

MAIN OUTCOME MEASURES: Tumour site, stage, treatment modality, location of diagnosis and treatment.

RESULTS: The study population was composed of 11 558 tumours. Oral cancer was the most common primary site (31%), followed by laryngeal (25%) and oropharyngeal cancer (22%). Ninety-six per cent of the entire study population was diagnosed and/or treated in a certified head and neck oncology centre which was lower in the 80+ population (92%). Multimodality treatment was less frequently applied with increasing age (eg oral cavity: 17% in 80+ vs 34% in 60-; P < .001). The percentage of patients not receiving tumour-directed treatment increased with age (eg oropharyngeal cancer: 25% in 80+ vs 6% in 80-; P < .001).

CONCLUSIONS: This study confirms that less multimodal and tumour-directed treatment is applied with the increasing age of head and neck cancer patients.