Table 1.
Basic characteristics of the subjects
| Characteristics | Values |
|---|---|
| N | 147 |
| Sex (M/F) | 143/4 (97.3%/2.7%) |
| Age (mean, SD) | 54.17 ± 10.87 (19–84) |
| Substance use | |
| Alcohol consumption | 110 (74.83%) |
| Betel-nut consumption | 119 (80.95%) |
| Cigarette consumption | 131 (89.16%) |
| HNC tumor location | |
| Nasopharynx | 3 (2.04%) |
| Oral cavity | 98 (66.67%) |
| Oropharynx | 17 (11.56%) |
| Hypopharynx | 28 (19.05%) |
| Larynx | 1 (0.68%) |
| Metastatic lesions | |
| No | 143 (97.28% |
| Yes | 2 (1.36%) |
| Unknown | 2 (1.36%) |
| Seventh AJCC Staging of the HNSCC | |
| Stage I | 20 (13.61%) |
| Stage II | 22 (14.97%) |
| Stage III | 10 (6.80%) |
| Stage IVA | 65 (44.22%) |
| Stage IVB | 24 (16.33%) |
| Stage IVC | 2 (1.36%) |
| Unknown | 4 (2.72%) |
| PET/CT scan findings of the esophagus | |
| Positive | 8 (5.44%) |
| Negative | 139 (94.56%) |
| Endoscopic findings | |
| Suspicious esophageal lesion | 35 (23.81%) |
| Gastric ulcer | 39 (27.08%) |
| Duodenal ulcer | 32 (22.07%) |
| Pathologic findings in the esophagus | |
| Squamous cell carcinoma | 10 (6.80%) |
| High-grade dysplasia | 5 (3.40%) |
| CLO test positivity | 36 (26.87%) |
AJCC American Joint Committee on Cancer, SD standard deviation, HNSCC head and neck squamous cell carcinoma, CLO Campylobacter-like organism