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Table 3 Tumor Characteristics

From: Marijuana and head and neck cancer: an epidemiological review

Variable Non-Marijuana Marijuana p-Value
N 805 74  
Primary Site of Cancer, n (%)    < 0.0001
 Oropharynx 160 (19.9) 47 (63.5)  
 Oral Cavity 141 (17.5) 14 (18.9)  
 Nasopharynx 19 (2.4) 0 (0)  
 Hypopharynx 12 (1.5) 1 (1.4)  
 Larynx 138 (17.2) 12 (16.2)  
 Skin 81 (10.1) 0 (0)  
 Salivary Gland 76 (9.4) 0 (0)  
 Other 177 (22.0) 0 (0)  
Oropharynx p16 Status    0.002
 P16 Positive 132 (82.5) 45 (95.7)  
 P16 Negative 28 (17.5) 2 (4.3)  
cT-Stage, n (%)    0.076
 Tis 13 (1.6) 1 (1.4)  
 T1 245 (30.4) 22 (29.8)  
 T2 318 (39.5) 28 (37.8)  
 T3 148 (18.4) 14 (18.9)  
 T4 81 (10.1) 7 (9.6)  
cN-Stage, n (%)    0.144
 N0 357 (44.4) 31 (43.0)  
 N1 100 (12.4) 8 (11.1)  
 N2a 229 (28.4) 20 (27.8)  
 N2b 59 (7.4) 6 (8.3)  
 N2c 30 (3.7) 3 (4.2)  
 N3 30 (3.7) 4 (5.6)  
Treatment, n (%)    < 0.0001
 S 167 (20.8) 8 (10.8)  
 RT 151 (18.8) 14 (18.9)  
 CRT 195 (24.2) 33 (48.6)  
 S-RT 197 (24.4) 12 (16.2)  
 S-CRT 84 (10.4) 6 (8.1)  
 Palliative 11 (1.4) 0 (0)