Demographics measured included age, gender, race (White, Black, or not reported), and marital status (married, divorced/single/widowed, or unknown). Median income was estimated using patient zip code and 2019 U.S. Census data. Clinical characteristics included primary tumor site (oropharynx, oral cavity, or larynx), HPV status (generally assessed in patients with oropharyngeal cancer), The American Joint Committee on Cancer (AJCC) tumor stage (did not adjust earlier staging classifications following AJCC staging updated in 2018), treatment stage (post-definitive cancer treatment or active definitive cancer treatment), and type of treatment (surgery and adjuvant, chemoradiation, surgery alone, radiation alone, or unknown). Factors associated with QOL were assessed across 12 domains which include: pain, appearance, activity, recreation, swallowing, chewing, speech, shoulder, taste, saliva, mood, and anxiety. Participants were asked, “Which issues have been the most important to you during the past 7 days?” and were given the option to select up to 3 of the 12 QOL domains. All demographic and clinical characteristics data, including HL and QOL surveys, were collected prospectively during HNC survivorship clinic visit.