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Table 1 Study cohort clinicopathological characteristics

From: HPV-16 infection modifies overall survival of Puerto Rican HNSCC patients

Characteristics N = 185
Age (y)
 Mean ± SD 62.72 ± 12.13
 Range 24-98
Sex, n (%)
 Male 164 (88.6)
 Female 21 (11.4)
Primary Tumor Site, n (%)
 Larynx 83 (44.9)
 Oral Cavity 68 (36.7)
 Oropharynx 17 (9.2)
 Hypopharynx 17 (9.2)
HPV-16 Status, n (%)*
 HPV-16 + 97 (52.4)
 HPV-16 - 88 (47.6)
Tumor Stage, n (%)
 I, II 47 (25.4)
 III, IV 138 (74.6)
Tumor Grade, n (%)
 Well 43 (23.2)
 Moderate 107 (57.8)
 Poor 16 (8.7)
 SCC 19 (10.3)
Nodal Involvement
 Yes 64 (34.6)
 No 121 (65.4)
Heavy Smoking, n (%) 163 (88.1)
Heavy Drinking, n (%) 154 (83.2)
  1. *HPV-16 + = human papillomavirus type 16 positive; HPV-16 - = human papillomavirus type 16 negative