Table 3.
Baseline demographic and tumor characteristics of patients based on tumor size
| Characteristic | Tumor size | |||||
|---|---|---|---|---|---|---|
| 1–19 mm | 20-33 mm | ≥34 mm | Log-rank | P value | ||
| Age | < 60 | 26 (29.5) | 48 (30.0) | 32 (27.8) | 0.16 | 0.923 |
| ≥60 | 62 (70.5) | 112 (70.0) | 83 (72.2) | |||
| Race | White | 63 (71.6) | 123 (76.9) | 79 (68.7) | 0.401 | 4.035 |
| Black | 5 (5.7) | 9 (5.6) | 12 (10.4) | |||
| Others | 20 (22.7) | 28 (17.5) | 24 (20.9) | |||
| Sex | Female | 29 (33.0) | 56 (35.0) | 51 (44.3) | 3.504 | 0.173 |
| Male | 59 (67.0) | 104 (65.0) | 64 (55.7) | |||
| Grade | Well/moderate | 53 (60.2) | 102 (63.8) | 62 (53.9) | 10.169 | 0.038 |
| Poor/undifferentiated | 18 (20.5) | 45 (28.) | 39 (33.9) | |||
| Unknown | 17 (19.3) | 13 (8.1) | 14 (12.2) | |||
| T5 | T1 | 24 (27.3) | 20 (12.5) | 11 (9.6) | 28.336 | < 0.001 |
| T2 | 37 (42.0) | 80 (50.0) | 58 (50.4) | |||
| T3 | 10 (11.4) | 21 (13.1) | 19 (16.5) | |||
| T4 | 2 (2.3) | 7 (4.4) | 15 (13.0) | |||
| Tx | 15 (17.0) | 32 (20.0) | 12 (10.4) | |||
| M | M0 | 85 (96.6) | 153 (95.6) | 107 (93.0) | 1.538 | 0.463 |
| M1 | 3 (3.4) | 7 (4.4) | 8 (7.0) | |||
| RN status | RN examined and not positive | 52 (59.1) | 76 (47.5) | 41 (35.7) | 15.744 | 0.015 |
| RN examined and < 4 nodes positive | 21 (23.9) | 53 (33.1) | 40 (34.8) | |||
| RN examined and > =4 nodes positive | 3 (3.4) | 15 (9.4) | 16 (13.9) | |||
| RN not examined or RN unknown | 12 (13.6) | 16 (10.0) | 18 (15.7) | |||
| Vascular Invasion | Absent | 83 (94.3) | 141 (88.1) | 91 (79.1) | 10.475 | 0.005 |
| Present | 5 (5.7) | 19 (11.9) | 24 (20.9) | |||