Table 1 Characteristics of Stage II Gastric Cancer Patients before and after PSM
Characteristic | Before PSM (n = 1121) | After PSM (n = 948) | ||||
|---|---|---|---|---|---|---|
AC [n = 805] (%) | Surgery-only [n = 316] (%) | p value | AC [n = 632] (%) | Surgery-only [n = 316] (%) | p value | |
Age | 0.002 | 1.000 | ||||
< 60 | 415 (51.6) | 130 (41.1) | 260 (41.1) | 130 (41.1) | ||
 ≧ 60 | 390 (48.4) | 186 (58.9) | 372 (58.9) | 186 (58.9) | ||
Sex | 0.102 | 0.255 | ||||
Male | 567 (70.4) | 238 (75.3) | 454 (71.8) | 238 (75.3) | ||
Female | 238 (29.6) | 78 (24.7) | 178 (28.2) | 78 (24.7) | ||
Tumor location | 0.143 | 0.296 | ||||
Upper | 236 (29.3) | 106 (33.5) | 201 (31.8) | 106 (33.5) | ||
Middle | 139 (17.3) | 44 (24.0) | 105 (16.6) | 44 (13.9) | ||
Lower | 383 (47.6) | 155 (49.1) | 290 (45.9) | 155 (49.1) | ||
Linitis plastica | 47 (5.8) | 11 (3.5) | 36 (5.7) | 11 (3.5) | ||
Tumor size | 0.638 | 0.849 | ||||
< 5 cm | 519 (64.5) | 199 (63.0) | 402 (63.6) | 199 (63.0) | ||
≧ 5 cm | 286 (35.5) | 117 (37.0) | 230 (36.4) | 177 (37.0) | ||
SCA | 0.007 | 0.038 | ||||
Yes | 145 (18.0) | 36 (11.4) | 104 (16.5) | 36 (11.4) | ||
No | 660 (82.0) | 280 (88.6) | 528 (83.5) | 280 (88.6) | ||
MCA | 0.193 | 0.240 | ||||
Yes | 69 (8.6) | 35 (11.1) | 55 (8.7) | 35 (11.1) | ||
No | 736 (91.4) | 281 (88.9) | 577 (91.3) | 281 (88.9) | ||
CA199 (U/ml) | 0.623 | 0.436 | ||||
< 37 | 710 (88.2) | 282 (89.2) | 553 (87.5) | 282 (89.2) | ||
≧ 37 | 95 (11.8) | 34 (10.8) | 79 (12.5) | 34 (10.8) | ||
CEA (ng/ml) | 0.627 | 0.951 | ||||
< 5 | 677 (84.1) | 262 (82.9) | 525 (83.1) | 262 (82.9) | ||
≧ 5 | 128 (15.9) | 54 (17.1) | 107 (16.9) | 54 (17.1) | ||
HB (g/L) | 0.297 | 0.166 | ||||
< 120 | 289 (35.9) | 124 (39.2) | 219 (34.7) | 124 (39.2) | ||
≧ 120 | 516 (64.1) | 192 (60.8) | 413 (65.3) | 192 (60.8) | ||
T stage | 0.086 | 0.088 | ||||
T1/2/3 | 665 (82.6) | 247 (78.2) | 523 (82.8) | 247 (78.2) | ||
T4 | 140 (17.4) | 69 (21.8) | 109 (17.2) | 69 (21.8) | ||
N stage | 0.141 | 0.215 | ||||
Positive | 424 (52.7) | 151 (47.8) | 329 (52.1) | 151 (47.8) | ||
Negative | 381 (47.3) | 165 (52.2) | 303 (47.9) | 165 (52.2) | ||