Table 1.
Patient characteristics
| Characteristics | Total N = 529 (%) | No primary tumor resection N = 299 (%) | Primary tumor resection N = 230 (%) | P a |
|---|---|---|---|---|
| Age (y) | ||||
| 20‐39 | 34 (6.4) | 2 (0.7) | 32 (13.9) | <0.001 |
| 40‐59 | 219 (41.4) | 119 (39.8) | 100 (43.5) | |
| 60‐79 | 237 (44.8) | 147 (49.2) | 90 (39.1) | |
| 80+ | 39 (7.4) | 31 (10.4) | 8 (3.5) | |
| Race | ||||
| White | 355 (67.1) | 213 (71.2) | 142 (61.7) | <0.001 |
| Black | 80 (15.1) | 54 (18.1) | 26 (11.3) | |
| Other | 94 (17.8) | 32 (10.7) | 62 (27.0) | |
| Sex | ||||
| Male | 418 (79.0) | 248 (82.9) | 170 (73.9) | 0.011 |
| Female | 111 (21.0) | 51 (17.1) | 60 (26.1) | |
| Year | ||||
| 2004‐2008 | 282 (53.3) | 169 (56.5) | 113 (49.1) | 0.091 |
| 2009‐2013 | 247 (46.7) | 130 (43.5) | 117 (50.9) | |
| Tumor size | ||||
| <3 cm | 32 (6.0) | 16 (5.4) | 16 (7.0) | <0.001 |
| 3‐4.9 cm | 72 (13.6) | 38 (12.7) | 34 (14.8) | |
| 5‐10 cm | 163 (30.8) | 89 (29.8) | 74 (32.2) | |
| >10 cm | 126 (23.8) | 49 (16.4) | 77 (33.5) | |
| Unknown | 136 (25.7) | 107 (35.8) | 29 (12.6) | |
| Stageb | ||||
| IVa | 152 (28.7) | 61 (20.4) | 91 (39.6) | <0.001 |
| IVb | 377 (71.3) | 238 (79.6) | 139 (60.4) | |
| AFP | ||||
| Negative | 92 (17.4) | 30 (10.0) | 62 (27.0) | <0.001 |
| Positive | 295 (55.8) | 178 (59.5) | 117 (50.9) | |
| Unknown | 142 (26.8) | 91 (30.4) | 51 (22.2) | |
| Primary tumor number | ||||
| Single | 173 (32.7) | 84 (28.1) | 89 (38.7) | 0.008 |
| Multiple | 159 (30.1) | 88 (29.4) | 71 (30.9) | |
| Unknown | 197 (37.2) | 127 (42.5) | 70 (30.4) | |
| Vascular invasion | ||||
| No | 175 (33.1) | 92 (30.8) | 83 (36.1) | 0.218 |
| Yes | 127 (24.0) | 69 (23.1) | 58 (25.2) | |
| Unknown | 227 (42.9) | 138 (46.2) | 89 (38.7) | |
| Extrahepatic extension | ||||
| No | 393 (74.3) | 216 (72.2) | 177 (77.0) | <0.001 |
| Yes | 77 (14.6) | 34 (11.4) | 43 (18.7) | |
| Unknown | 59 (11.2) | 49 (16.4) | 10 (4.3) | |
| Radiotherapy | ||||
| No | 461 (87.1) | 258 (86.3) | 203 (88.3) | 0.777 |
| Yes | 65 (12.3) | 39 (13.0) | 26 (11.3) | |
| Unknown | 3 (0.6) | 2 (0.7) | 1 (0.4) | |
a
χ 2 test.
b
AJCC, American Joint Committee on Cancer (7th edition).