Table 1 Baseline demographics and disease characteristics of participants (n = 52)
Characteristic | Patients |
|---|---|
Age, years | |
 Median | 44 |
 Range | 25–63 |
Gender, n (%) | |
 Male | 41 (78.8) |
 Female | 11 (21.2) |
ECOG performance score, n (%) | |
 0 | 49 (94.2) |
 1 | 3 (5.8) |
Smoking status, n (%) | |
 Yes | 13 (25.0) |
 No | 39 (75.0) |
Disease status, n (%) | |
 Primary metastatic | 29 (55.8) |
 Recurrent | 23 (44.2) |
Histology, n (%) | |
 Non-keratinizing undifferentiated | 51 (98.1) |
 Poorly differentiated | 1 (1.9) |
Lung metastases, n (%) | |
 Yes | 15 (28.8) |
 No | 37 (71.2) |
Liver metastases, n (%) | |
 Yes | 23 (44.2) |
 No | 29 (55.8) |
Bone metastases, n (%) | |
 Yes | 23 (44.2) |
 No | 29 (55.8) |
Expression of EGFR, n (%) | |
 Negative | 2 (3.8) |
 Weak staining | 37 (71.2) |
 Intermediate staining | 1 (1.9) |
 Strong staining | 7 (13.5) |
 Unknown | 5 (9.6) |
Baseline EBV DNA level, copies/mL | |
 Median | 8965 |
 Interquartile range | 1965-57,625 |
 ≥ 10,000 | 25 (48.1) |
 < 10,000 | 27 (51.9) |