Table 4.
The Distribution of Patients with Gastric Cancer According to the PCC Component
| Characteristic | PCC component, % | Total | p-value* | |||
|---|---|---|---|---|---|---|
| 10≤PCC≤30 | 30<PCC≤50 | 50<PCC≤70 | 70<PCC≤90 | |||
| No. of patients | 226 (28.7) | 129 (16.4) | 218 (27.7) | 214 (27.2) | 787 (100) | |
| Age, yr | 59.8±12.1 | 55.8±12.7 | 55.6±12.5 | 55.5±13.0 | 56.8±12.7 | <0.001 |
| Sex | 0.022 | |||||
| Male | 142 (62.8) | 67 (51.9) | 107 (49.1) | 112 (52.3) | 428 (54.4) | |
| Female | 84 (37.2) | 62 (48.1) | 111 (50.9) | 102 (47.7) | 359 (45.6) | |
| Size of tumor, cm | 3.9±2.6 | 3.8±2.5 | 3.8±2.5 | 4.0±2.7 | 3.9±2.6 | 0.844 |
| Location | 0.135 | |||||
| Upper | 50 (22.1) | 25 (19.4) | 33 (15.1) | 32 (15.0) | 140 (17.8) | |
| Middle | 49 (21.7) | 35 (27.1) | 53 (24.3) | 41 (19.2) | 178 (22.6) | |
| Lower | 127 (56.2) | 69 (53.5) | 132 (60.6) | 141 (65.9) | 469 (59.6) | |
| Treatment | 0.241 | |||||
| Endoscopic | 10 (4.4) | 11 (8.5) | 9 (4.1) | 9 (4.2) | 39 (5.0) | |
| Operative | 216 (95.6) | 118 (91.5) | 209 (95.9) | 205 (95.8) | 748 (95.0) | |
| Lymphatic invasion | 148 (65.8) | 88 (68.8) | 158 (72.8) | 150 (70.1) | 544 (69.4) | 0.448 |
| Venous invasion | 209 (93.3) | 121 (94.5) | 207 (95.4) | 204 (95.3) | 741 (94.6) | 0.745 |
| Perineural invasion | 176 (78.2) | 94 (73.4) | 161 (74.2) | 160 (74.8) | 591 (75.4) | 0.694 |
| T stage† | 0.306 | |||||
| 1a | 91 (40.3) | 51 (39.5) | 97 (44.5) | 89 (41.6) | 328 (41.7) | |
| 1b | 79 (35.0) | 38 (29.5) | 57 (26.1) | 55 (25.7) | 229 (29.1) | |
| 2 | 21 (9.3) | 13 (10.1) | 24 (11.0) | 25 (11.7) | 83 (10.5) | |
| 3 | 23 (10.2) | 14 (10.9) | 18 (8.3) | 16 (7.5) | 71 (9.0) | |
| 4a | 12 (5.3) | 11 (8.5) | 21 (9.6) | 27 (12.6) | 71 (9.0) | |
| 4b | 0 | 2 (1.6) | 1 (0.5) | 2 (0.9) | 5 (0.6) | |
| Node metastasis | 0.296 | |||||
| Negative | 148 (65.5) | 80 (62.0) | 129 (59.2) | 122 (57.0) | 479 (60.9) | |
| Positive | 78 (34.5) | 49 (38.0) | 89 (40.8) | 92 (43.0) | 308 (39.1) | |
| Distant metastasis | 0.115 | |||||
| Negative | 224 (99.1) | 129 (100) | 212 (97.2) | 212 (99.1) | 777 (98.7) | |
| Positive | 2 (0.9) | 0 | 6 (2.8) | 2 (0.9) | 10 (1.3) | |
Data are presented as number (%) or mean±SD.
PCC, poorly cohesive carcinoma.
*The p-values were calculated by Student t-test (for continuous variables) and the chi-square test (for categorical variables); †The clinical stage was established according to the guidelines of the 8th American Joint Committee on Cancer.