Table 1.
Correlation of clinical variables with p16 immunoreactivity in oropharyngeal squamous cell carcinoma
| Characteristics | Number of cases (n=21) | p16 ihc (n=21) |
Chi-square test |
||
|---|---|---|---|---|---|
| Positive (6; 28.5%) | Negative (15: 71.4%) | χ2 | P | ||
| Age in years | |||||
| Mean | 51.3 | 46 | 53.53 | 2.17 | 0.70 |
| 20-29 | 0 | 0 | 0 | ||
| 30-39 | 3 | 1 | 2 | ||
| 40-49 | 6 | 3 | 3 | ||
| 50-59 | 6 | 1 | 5 | ||
| 60-69 | 5 | 1 | 4 | ||
| 70-79 | 1 | 0 | 1 | ||
| Gender | |||||
| Male | 11 | 2 | 9 | 1.2 | 0.26 |
| Female | 10 | 4 | 6 | ||
| Site | |||||
| Soft palate | 9 | 1 | 8 | 2.36 | 0.30 |
| Base of the tongue | 7 | 3 | 4 | ||
| Lateral wall of the pharynx | 5 | 2 | 3 | ||
| Grading | |||||
| Well differentiated | 7 | 2 | 5 | 2.71 | 0.25 |
| Moderately differentiated | 11 | 2 | 9 | ||
| Poorly differentiated | 3 | 2 | 1 | ||
*P<0.05 is considered to be statistically significant. IHC: Immunohistochemistry