Table 1. Demographic details of HNSCC patients of the TCGA firehose legacy dataset used for analysis in the present study.

Gender	Male ( n  = 386) Female ( n  = 142)
Mutation count	6–3,181
TP53 mutation state	TP53 mutation, n  = 327 TP53 non-mutation, n  = 175
Diagnosis age	19–90 y
Smoking status	Smokers: 515 Data not available: 12 Unknown: 1
Alcohol history	Yes – 352 No – 165 Data not available: 11
Neoplasm histologic grade	Grade 1: 63 Grade 2: 311 Grade 3: 125 Grade 4: 7 Grade GX: 18 Data not available: 4
Race category	White: 452 African: 48 Asian: 11 American Indian or Alaska native: 2 Data not available: 15

Abbreviations: HNSCC, head and neck squamous cell carcinoma; TCGA, The Cancer Gene Atlas.

Source: Adapted from cBioportal site.