Table 1.
Patient Characteristics
| Variable | Level | Total N=39 (%) |
HPV Negative N=21 (%) |
HPV Positive N=18 (%) |
P-value* |
|---|---|---|---|---|---|
| Sex | Female | 11 (28.2) | 9 (42.86) | 2 (11.11) | 0.028 |
| Male | 28 (71.8) | 12 (57.14) | 16 (88.89) | ||
| Smoking | No | 18 (46.2) | 8 (38.1) | 10 (55.56) | 0.276 |
| Yes | 21 (53.8) | 13 (61.9) | 8 (44.44) | ||
| Alcohol | No | 28 (71.8) | 14 (66.67) | 14 (77.78) | 0.442 |
| Yes | 11 (28.2) | 7 (33.33) | 4 (22.22) | ||
| AJCC Stage | 2–3 | 8 (20.5) | 6 (28.57) | 2 (11.11) | 0.247 |
| 4 | 31 (79.5) | 15 (71.43) | 16 (88.89) | ||
| T Stage | T1/T2 | 20 (51.3) | 9 (42.86) | 11 (61.11) | 0.256 |
| T3/T4 | 19 (48.7) | 12 (57.14) | 7 (38.89) | ||
| N Stage | N0/N1 | 13 (33.3) | 12 (57.14) | 1 (5.56) | <.001 |
| N2 | 26 (66.7) | 9 (42.86) | 17 (94.44) | ||
| Tumor Site | Oropharynx | 22 (56.4) | 4 (19.05) | 18 (100) | <.001 |
| Oral Cavity | 17 (43.6) | 17 (80.95) | 0 (0) | ||
| Age | Mean (SD) | 63.95 (10.3) | 68.29 (9.97) | 58.89 (8.45) | 0.003 |
*
The p-value is calculated by chi-square test or Fisher's exact test for categorical covariates, where appropriate; and analysis of variance (ANOVA) for age.
HPV, human papillomavirus; AJCC, American Joint Committee on Cancer; SD, standard deviation.