Table 1. Clinicopathological characteristics of patients aged 65 or older with non-metastatic resected gastric cancer.
| Characteristic | Total | Surgery only | Surgery+chemotherapy | P |
| No. of patients | 360 | 235 | 125 | |
| Age at diagnosis | 0.003* | |||
| 65–70 years | 189(52.5) | 110(46.9) | 79(63.2) | |
| >70 years | 171(47.5) | 125(53.1) | 46(36.8) | |
| Gender | 0.535 | |||
| Male | 263(73.1) | 169(71.9) | 94(75.2) | |
| Female | 97(26.9) | 66(28.1) | 31(24.8) | |
| Charlson score | 0.144 | |||
| 0 | 270(75) | 171(72.7) | 99(79.2) | |
| 1 | 76(21.1) | 52(22.1) | 24(19.2) | |
| 2+ | 14(3.9) | 12(5.1) | 2(1.6) | |
| Time of diagnosis | 0.276 | |||
| 1999–2003 | 161(44.7) | 110(46.8) | 51(40.8) | |
| 2004–2007 | 199(55.3) | 125(53.2) | 74(59.2) | |
| Location of tumor | <0.001* | |||
| Proximal | 218(60.6) | 165(70.2) | 53(42.4) | |
| Distal | 142(39.4) | 70(29.8) | 72(57.6) | |
| Size | 0.862 | |||
| ≤5 cm | 217(60.3) | 144(61.3) | 75(60.0) | |
| >5 cm | 141(39.2) | 91(38.7) | 50(40.0) | |
| Grade | 0.001* | |||
| Well or moderately differentiated | 126(35.0) | 96(40.9) | 30(24.0) | |
| Poorly differentiated or undifferentiated | 234(65.0) | 139(59.1) | 95(76.0) | |
| T category | 0.012* | |||
| T1 | 20(5.6) | 18(7.7) | 2(1.6) | |
| T2 | 38(10.6) | 27(11.5) | 11(8.8) | |
| T3 | 36(10.0) | 24(10.2) | 12(9.6) | |
| T4 | 266(73.9) | 166(70.6) | 100(80.0) | |
| N category | <0.001* | |||
| N0 | 142(39.4) | 116(49.4) | 26(20.8) | |
| N1 | 81(22.5) | 50(21.3) | 31(24.8) | |
| N2 | 72(20.0) | 42(17.9) | 30(24.0) | |
| N3 | 65(18.1) | 27(11.5) | 38(30.4) | |
| AJCC stage(7th) | <0.001* | |||
| I | 40(11.1) | 34(14.5) | 6(4.8) | |
| II | 119(33.1) | 91(38.7) | 28(22.4) | |
| III | 201(55.8) | 110(46.8) | 91(72.8) |
Abbreviations: CI, confidence interval; T, tumor; N, lymph node; AJCC, American Joint Committee on Cancer.
*
Statistically significant.