Table 2.
Comparison of pathologic characteristics between MSKCC and FMUUH patients aged ≥80 years undergoing R0 gastrectomy for gastric cancer.
| MSKCC (n=159) n (%) |
FMUUH (n=118) n (%) |
t/χ2 | p value | |
|---|---|---|---|---|
| Tumor size (cm)a | 4.3 ± 2.9 | 5.4 ± 2.8 | −3.063 | 0.004 |
| Tumor location | 24.564 | <0.001 | ||
| Upper third | 39 (24.5) | 35 (29.7) | ||
| Middle third | 43 (27.0) | 18 (15.3) | ||
| Lower third | 74 (46.5) | 45 (38.1) | ||
| More than two parts | 3 (1.9) | 20 (16.9) | ||
| Differentiation | 9.861 | 0.007 | ||
| Differentiated | 26 (16.4) | 37 (31.4) | ||
| Undifferentiated | 131 (82.4) | 81 (68.6) | ||
| N/A or unknown | 2 (1.3) | 0 (0) | ||
| No. of LN examinedb | 20 ± 14.3 | 25 ± 12.9 | 3.615 | <0.001 |
| No. of LN examined | 7.962 | 0.019 | ||
| 0–14 | 39 (24.5) | 16 (13.6) | ||
| 15–30 | 90 (56.6) | 66 (55.9) | ||
| >30 | 30 (18.9) | 56 (30.5) | ||
| No. of positive LNa | 2.2 ± 4.9 | 6.9 ± 9.5 | −5.319 | <0.001 |
| Ratio of positive LN | 27.153 | <0.001 | ||
| 0 | 90 (56.6) | 40 (33.9) | ||
| ≤10% | 27 (17.0) | 13 (11.0) | ||
| 10–25% | 20(12.6) | 19 (16.1) | ||
| >25% | 22 (13.8) | 46 (39.0) | ||
| T status | 36.080 | <0.001 | ||
| T1 | 55 (34.6) | 11 (9.3) | ||
| T2 | 21 (13.2) | 13 (11.0) | ||
| T3 | 50 (31.4) | 35 (29.7) | ||
| T4a | 30 (18.9) | 55 (46.6) | ||
| T4b | 3 (1.9) | 4 (3.4) | ||
| N status | 32.626 | <0.001 | ||
| N0 | 90 (56.6) | 40 (33.9) | ||
| N1 | 30 (18.9) | 14 (11.9) | ||
| N2 | 23 (14.5) | 22 (18.6) | ||
| N3a | 12 (7.5) | 24 (20.3) | ||
| N3b | 4 (2.5) | 18 (15.3) | ||
| AJCC stage | 25.309 | <0.001 | ||
| I | 67 (42.1) | 18 (15.3) | ||
| II | 41 (25.8) | 34 (28.8) | ||
| III | 51 (32.1) | 66 (55.9) | ||
a
Mean ± standard deviation;
b
Median ± standard deviation; MSKCC, Memorial Sloan Kettering Cancer Center; FMUUH, Fujian Medical University Union Hospital; LN, lymph nodes