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Table 1 Comparison of patient demographics in OPC samples selected for methylation data extraction; all samples in HN5000 identified as OPC and all samples in HN5000

From: Identifying epigenetic biomarkers of established prognostic factors and survival in a clinical cohort of individuals with oropharyngeal cancer

Variable OPC in HN5000 with methylation data and complete phenotype data (N = 409) OPC in HN5000 (N = 1909) All HN5000 (all sub-types) (N = 5392)
ICD group (% oropharynx) 100 100 35.4
Sex (% female) 27.0 21.9 27.2
Age (% < 60) 58.4 52.4 42.7
Smoking (% never smoked) 27.1 28.0 24.6
Alcohol (% non-drinker) 25.9 26.6 28.4
HPV16 E6 (% negative) 33.3 32.3 72.0
Survival (% died, prior to 30/09/2017) 26.2 24.2 28.0