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Table 1: Patient demographics and tumor characteristics of patients with head and neck cancer^{^a}
Characteristic HIV-Positive Group (n = 9) HIV-Negative Group (n = 26) P Value
Age (yr) .034^{^b}
    Median (range) 48 (29–62) 59 (30–86) 
Sex .490
    Male 7 (78) 17 (65) 
    Female 2 (22) 9 (35) 
HPV status (protein 16) .283
    Positive 3 12 
    Negative 1 14 
    Unknown 5 0 
Primary site .169
    Oropharynx 3 (33) 10 (38) 
    Hypopharynx 0 (0) 1 (4) 
    Larynx 1 (11) 3 (12) 
    Oral cavity 3 (33) 12 (46) 
    Primary unknown 1 (11) 0 (0) 
    Maxilla 1 (11) 0 (0) 
T-Stage .444
    T0 1 (11) 0 (0) 
    T1 1 (11) 7 (27) 
    T2 3 (33) 9 (35) 
    T3 1 (11) 2 (8) 
    T4 3 (33) 8 (30) 
Note:—HPV indicates human papillomavirus.
↵a Data are presented as number of patients with percentages in parentheses unless otherwise noted.
↵b Indicates a significant difference by the Pearson χ² or Mann-Whitney U test (P < .05).