Covariate | Full sample (n = 32) n (%) | P16 (-) (n = 9) n (%) | P16 ( +) (n = 23) n (%) | p-value |
---|---|---|---|---|
Gender | 0.23 | |||
Female | 9 (28) | 4 (44) | 5 (22) | |
Male | 23 (72) | 5 (56) | 18 (78) | |
Age | 0.69 | |||
Mean (sd) | 58 (9.4) | 56.5 (11.9) | 58.6 (8.5) | |
Median (Min,Max) | 57.9 (37.1,74.1) | 55.9 (37.1,74.1) | 58 (44.2,71.5) | |
Smoking Hx | 0.092 | |||
Current | 17 (53) | 7 (78) | 10 (43) | |
Ex-smoker | 7 (22) | 2 (22) | 5 (22) | |
Non-smoker | 8 (25) | 0 (0) | 8 (35) | |
Pack years | 0.019 | |||
Mean (sd) | 22 (21.5) | 36.2 (23.4) | 16.4 (18.4) | |
Median (Min,Max) | 19 (0,80) | 30 (10,80) | 10 (0,60) | |
Drinking Hx | < 0.001 | |||
Ex-drinker | 3 (9) | 3 (33) | 0 (0) | |
Heavy | 6 (19) | 4 (44) | 2 (9) | |
Light | 9 (28) | 2 (22) | 7 (30) | |
Moderate | 2 (6) | 0 (0) | 2 (9) | |
Non-drinker | 11 (34) | 0 (0) | 11 (48) | |
Unknown | 1 (3) | 0 (0) | 1 (4) | |
cT stage | 0.035 | |||
T0 | 4 | 0 | 4 | |
T1 | 19 (72) | 9 (100) | 10 (61) | |
T2 | 9 (28) | 0 (0) | 9 (39) | |
cN stage | 0.049 | |||
N0 | 15 (47) | 7 (78) | 8 (35) | |
N1 | 17 (53) | 2 (22) | 15 (65) | |
pT | 0.77 | |||
1 | 21 (66) | 7 (78) | 14 (61) | |
2 | 10 (31) | 2 (22) | 8 (35) | |
3 | 1 (3) | 0 (0) | 1 (4) | |
pN | 0.43 | |||
0 | 13 (41) | 5 (56) | 8 (35) | |
1 | 15 (47) | 4 (44) | 11 (48) | |
x | 4 (12) | 0 (0) | 4 (17) | |
ENE | 0.32 | |||
No | 27 (96) | 8 (89) | 19 (100) | |
Yes | 1 (4) | 1 (11) | 0 (0) | |
Missing | 4 | 0 | 4 | |
PNI | 1 | |||
No | 30 (94) | 9 (100) | 21 (91) | |
Yes | 2 (6) | 0 (0) | 2 (9) | |
LVI | 1 | |||
No | 26 (84) | 8 (89) | 18 (82) | |
Yes | 5 (16) | 1 (11) | 4 (18) | |
Missing | 1 | 0 | 1 | |
Histology grade | 0.011 | |||
Mod. diff | 13 (68) | 9 (100) | 4 (40) | |
Poorly diff | 6 (32) | 0 (0) | 6 (60) | |
Missing | 13 | 0 | 13 | |
Radiation treatment | 0.38 | |||
No | 23 (72) | 8 (89) | 15 (65) | |
Yes | 9 (28) | 1 (11) | 8 (35) | |
Chemo | 1 | |||
No | 31 (97) | 9 (100) | 22 (96) | |
Yes | 1 (3) | 0 (0) | 1 (4) | |
Site | 0.65 | |||
BOT | 6 (19) | 1 (11) | 5 (22) | |
Tonsil | 26 (81) | 8 (89) | 18 (78) | |
Follow-up (months) | 0.98 | |||
Mean (sd) | 21.6 (15.6) | 21.6 (14.4) | 21.6 (15.6) | |
Median (Min, Max) | 15.6 (3.6, 51.6) | 26.4 (3.6, 46.8) | 13.2 (4.8, 51.6) |