Table 1 Demographics and clinicopathological characteristics in high-risk and low-risk groups
Variables | Subgroup | High-risk group (n = 270) | Low-risk group (n = 271) |
|---|---|---|---|
Age | Â | Â | Â |
|  | < 65 years | 116 | 171 |
|  | >  = 65 years | 153 | 99 |
| Â | Unknown | 1 | 1 |
Stage | Â | Â | Â |
| Â | Stage I | 141 | 197 |
| Â | Stage II | 28 | 23 |
| Â | Stage III | 81 | 42 |
| Â | Stage IV | 20 | 9 |
Grade | Â | Â | Â |
| Â | Grade I | 18 | 80 |
| Â | Grade II | 39 | 81 |
| Â | Grade III | 203 | 109 |
| Â | Unknown | 10 | 1 |
Neoplasm | Â | Â | Â |
| Â | With neoplasm | 60 | 18 |
| Â | Without neoplasm | 188 | 238 |
| Â | Unknown | 22 | 15 |
Survival | Â | Â | Â |
| Â | Alive | 196 | 254 |
| Â | Dead | 74 | 17 |