Table 1.
Baseline characteristics of the patients.
| Variable | Subgroup | Statistics (%) |
|---|---|---|
| N (%) | 67 (100%) | |
| Sex | Female | 18 (27%) |
| Male | 49 (73%) | |
| Age | 66.00 (60.00~70.00) | |
| Body mass index | 22.90 (20.00~24.79) | |
| Diabetes mellitus | 11 (16%) | |
| Hypertension | 15 (22%) | |
| Heart disease | 3 (4%) | |
| Smoking | 8 (12%) | |
| Location | Tongue cancer | 12 (18%) |
| Buccal cancer | 10 (15%) | |
| Hypopharynx cancer | 9 (13%) | |
| Tonsil cancer | 9 (13%) | |
| Metastasis of lymph node | 11 (16%) | |
| Chemotherapy | 11 (16%) | |
| Follow-up time (month) | 8.00 (6.00~10.50) |
Continuous variables are expressed as median (interquartile range). Categorical variables are expressed as sample numbers (%; 95% confidence interval, %).