Figure 2. Proportion of Patients With Head and Neck Cancer (HNC) With Different Factors Associated With Receipt of Immunotherapy.

The proportion of patients who received or did not receive immune checkpoint inhibitors (ICIs) as part of treatment with different demographic (sex, race, smoking status) and clinical (cancer site, cancer stage) variables were calculated. A χ² test was used to study the association between ICI treatment received and different variables.

^aDifference was statistically significant.