Table 2 The descriptive characteristics of stage IB GAC patients after PSM
Characteristics | After PSM | P value | ||
|---|---|---|---|---|
All | No Chemo | Chemo | ||
470 | 235 | 235 | ||
Age | 63.4 (11.3) | 63.5 (11.4) | 63.2 (11.1) | 0.743 |
Year | 0.819 | |||
2004–2007 | 122 (26.0%) | 64 (27.2%) | 58 (24.7%) | |
2008–2011 | 138 (29.4%) | 68 (28.9%) | 70 (29.8%) | |
2012–2015 | 210 (44.7%) | 103 (43.8%) | 107 (45.5%) | |
Gender | 1 | |||
Female | 157 (33.4%) | 79 (33.6%) | 78 (33.2%) | |
Male | 313 (66.6%) | 156 (66.4%) | 157 (66.8%) | |
Race | 0.386 | |||
White | 302 (64.3%) | 146 (62.1%) | 156 (66.4%) | |
Non-White | 168 (35.7%) | 89 (37.9%) | 79 (33.6%) | |
Marital status | 1 | |||
Married | 313 (66.6%) | 157 (66.8%) | 156 (66.4%) | |
Unmarried | 157 (33.4%) | 78 (33.2%) | 79 (33.6%) | |
Grade | 0.779 | |||
I/II | 194 (41.3%) | 95 (40.4%) | 99 (42.1%) | |
III/IV | 276 (58.7%) | 140 (59.6%) | 136 (57.9%) | |
T stage | 0.292 | |||
T1 | 172 (36.6%) | 80 (34.0%) | 92 (39.1%) | |
T2a | 298 (63.4%) | 155 (66.0%) | 143 (60.9%) | |
Primary site | 0.799 | |||
Cardia/fundus | 166 (35.3%) | 78 (33.2%) | 88 (37.4%) | |
Greater curvature/lesser curvature/body | 131 (27.9%) | 68 (28.9%) | 63 (26.8%) | |
Others | 49 (10.4%) | 26 (11.1%) | 23 (9.8%) | |
Pylorus/antrum | 124 (26.4%) | 63 (26.8%) | 61 (26.0%) | |
Tumor size | 0.868 | |||
≤2cm | 158 (33.6%) | 79 (33.6%) | 79 (33.6%) | |
≤5cm | 238 (50.6%) | 121 (51.5%) | 117 (49.8%) | |
>5cm | 74 (15.7%) | 35 (14.9%) | 39 (16.6%) | |
RNE | 0.782 | |||
≥16 | 240 (51.1%) | 122 (51.9%) | 118 (50.2%) | |
1–15 | 230 (48.9%) | 113 (48.1%) | 117 (49.8%) | |
RNP | 0.263 | |||
0 | 309 (65.7%) | 159 (67.7%) | 150 (63.8%) | |
1 | 110 (23.4%) | 56 (23.8%) | 54 (23.0%) | |
2 | 51 (10.9%) | 20 (8.5%) | 31 (13.2%) | |
Radiation | 1 | |||
None | 404 (86.0%) | 202 (86.0%) | 202 (86.0%) | |
Yes | 66 (14.0%) | 33 (14.0%) | 33 (14.0%) | |