Table 3.
Univariate analysis of the matched population (n = 616)
| Variables | N (%) | 6‐mo survival rate (%) | P |
|---|---|---|---|
| Radiation | |||
| Yes | 308 (50) | 55.0 | <0.001 |
| No | 308 (50) | 31.0 | |
| Age | |||
| ≤65 | 416 (67.5) | 43.0 | 0.459 |
| >65 | 200 (32.5) | 42.6 | |
| Sex | |||
| Male | 501 (81.3) | 43.2 | 0.908 |
| Female | 115 (18.7) | 41.4 | |
| Marital status | |||
| Married | 344 (55.8) | 41.6 | 0.834 |
| Single and unmarried | 131 (21.3) | 40.1 | |
| Widowed, divorced, separated | 123 (20.0) | 49.2 | |
| Unknown | 18 (2.9) | 41.6 | |
| Race | |||
| White | 404 (65.6) | 46.4 | 0.300 |
| Black | 89 (14.4) | 40.8 | |
| Other | 123 (20.0) | 33.2 | |
| Tumor size | |||
| ≤1 cm | 3 (0.5) | 33.3 | 0.022 |
| 1‐3 cm | 44 (7.1) | 59.4 | |
| 3‐5 cm | 93 (15.1) | 44.5 | |
| >5 cm | 353 (57.3) | 44.6 | |
| Unknown | 123 (20.0) | 31.5 | |
| Vascular invasion | |||
| Code 630 | 378 (61.4) | 44.1 | 0.770 |
| Code 635 | 160 (26.0) | 40.7 | |
| Code 660 | 78 (12.7) | 41.0 | |
| TNM/T | |||
| T3 | 538 (87.3) | 43.1 | 0.587 |
| T4 | 78 (12.7) | 41.0 | |
| Lymph nodes | |||
| N0 | 441 (71.6) | 46.6 | <0.001 |
| N1 | 117 (19.0) | 36.2 | |
| Nx | 58 (9.4) | 28.7 | |
| Distant metastasis | |||
| M0 | 427 (69.3) | 51.5 | <0.001 |
| M1 | 171 (27.8) | 22.1 | |
| Mx | 18 (2.9) | 38.9 | |
| Derived AJCC Stage Group (6th) | |||
| III | 427 (69.3) | 51.5 | <0.001 |
| IV | 171 (27.8) | 22.1 | |
| Unk stage | 18 (2.9) | 38.9 | |
| Grade (differentiated) | |||
| Well | 58 (9.4) | 47.9 | 0.339 |
| Moderately | 76 (12.3) | 46.8 | |
| Poorly | 51 (8.3) | 40.9 | |
| Undifferentiated/anaplastic | 2 (0.3) | 100.0 | |
| Unknown | 429 (69.6) | 41.4 | |
| AFP | |||
| Elevated | 455 (73.9) | 41.0 | 0.003 |
| Within normal limits | 75 (12.2) | 61.7 | |
| Unknown | 86 (14.0) | 36.1 | |
| Fibrosis score | |||
| 0‐4 (F0) | 32 (5.2) | 44.7 | 0.381 |
| 5‐6 (F1) | 155 (25.2) | 47.9 | |
| Unknown | 429 (69.6) | 40.9 | |
AJCC, American Joint Committee on Cancer.