Comorbid Depression in Patients With Head and Neck Cancer Compared With Other Cancers.

Importance: Depression is more prevalent among individuals with cancer than in the general population and is correlated with increased mortality in patients with head and neck cancer (HNC) in particular.

Objective: To compare the prevalence of depression between patients with HNC and patients with other cancers.

Design, setting, and participants: This retrospective cohort study used population-level data on patients aged 18 years or older with cancer who participated in the 2019 National Health Interview Survey and had completed the Personal Health Questionnaire-8 (PHQ-8). The analysis was performed between August 7, 2023, and April 5, 2024.

Exposure: Any cancer diagnosis.

Main outcomes and measures: The main outcome was prevalence and severity of depression based on the PHQ-8. The magnitude of the difference in baseline characteristics was measured between patients with HNC and those with other cancer types, and 95% CIs were used to measure the precision of these estimates. Multivariable logistic regressions were used to evaluate the association of demographic, socioeconomic, anxiety, and clinical variables with depression.

Results: From a weighted cohort of 23 496 725 adult patients with cancer, 377 080 were diagnosed with HNC (87.5% aged 51-84 years; 77.9% male). The prevalence of any depression on the PHQ-8 (mild, moderate, or severe) was 40.1% in patients with HNC vs 22.3% in patients with other cancers. Compared with patients with other cancers, patients with HNC were equally likely to screen positive for anxiety (23.6% vs 16.0%; difference, 7.6%; 95% CI, -5.9% to 21.1%), take medication for depression (10.1% vs 13.9%; difference, -3.8%; 95% CI, -11.9% to 4.4%), and state that they never feel depressed (59.7% vs 53.7%; difference, 6.0%; 95% CI, -9.1% to 21.0%). On multivariable logistic regression analysis, having HNC was associated with an increased likelihood of depression (odds ratio [OR], 2.94; 95% CI, 1.39-6.22). Other factors associated with depression were being unmarried or not living with a partner (OR, 1.94; 95% CI, 1.55-2.43) and having anxiety (OR, 23.14; 95% CI, 17.62-30.37).

Conclusions and relevance: This cohort study found that patients with HNC were twice as likely to screen positive for depression on a validated survey than those with other cancers, despite having similar rates of self-reported depression and depression medication use. These findings suggest that self-reporting of depression may result in underreporting and undertreatment in this population and, thus, a need for further work in developing interventions to improve identification of and optimize treatment for patients with HNC and comorbid depression.