Table 1.
Baseline characteristics of enrolled patients
| Patient characteristics | n/mean±SD | ||
|---|---|---|---|
| Number of patients | 232 | ||
| Age at diagnosis (yrs, median, range) | 63 (39-81) | ||
| Sex (male/female) | 192/40 | ||
| Smokers (%) | 133(57.7%) | ||
| Drinkers (%) | 91(39.2%) | ||
| Tumor size (cm) | 1.98±0.94 | ||
| Tumor site (%) | |||
| Glottic | 152(65.2%) | ||
| Supraglottic | 68(29.3%) | ||
| Subglottic | 12(5.2%) | ||
| Differentiation grade | |||
| Poor | 39(16.8%) | ||
| Moderate & Well | 193(83.2%) | ||
| T stage III or IV (%) | 106(45.7%) | ||
| Lymph node metastasis (N+) (%) | 112(48.3%) | ||
| TNM stage III or IV (%) | 113(48.7%) | ||
| Recurrence (%) | 115(49.6%) | ||
| Death (%) | 78(33.6%) | ||
| Follow-up months (m) | 27.3±18.6 | ||