Table 1 Comparison of characteristics before and after propensity score matching
Variables | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
XELOX group (n = 172) | DOS group (n = 89) | P | XELOX group (n = 159) | DOS group (n = 89) | P | |
Gender | 0.130 | 0.224 | ||||
Male | 131 (76.1) | 60 (67.4) | 120 (75.5) | 60 (67.4) | ||
Female | 41 (23.9) | 29 (32.6) | 39 (24.5) | 29 (32.6) | ||
Age (median year, range) | 0.152 | 0.214 | ||||
Median | 62 | 59 | 62 | 59 | ||
Range | 31–78 | 24–74 | 31–78 | 24–74 | ||
⩾ 60 | 101 (58.7) | 44 (49.4) | 93 (58.5) | 44(51.2) | ||
Location | 0.857 | 0.966 | ||||
Gastroesophageal junction | 56 (32.5) | 28 (31.5) | 51 (32.1) | 28 (31.5) | ||
Stomach | 116 (67.5) | 61 (68.5) | 108 (67.9) | 61 (68.5) | ||
Lauren type | 0.043 | 0.167 | ||||
Intestinal type | 96 (55.8) | 42 (47.2) | 89 (55.9) | 42 (47.2) | ||
Diffuse type | 48 (27.9) | 38 (44.7) | 49 (29.0) | 38 (44.7) | ||
Mixed type | 28 (16.3) | 9 (8.1) | 21 (15.1) | 9 (8.1) | ||
CEA | 0.055 | 0.197 | ||||
Normal | 133 (77.3) | 59 (66.3) | 119 (74.8) | 59 (66.3) | ||
Elevated | 39 (22.7) | 30 (33.7) | 40 (25.2) | 30 (33.7) | ||
Causes of unresection | 0.493 | 0.454 | ||||
T4b | 11 (6.4) | 7 (7.8) | 10 (6.3) | 7 (7.8) | ||
Borrmanntype 4 or large type 3 | 57 (33.1) | 35 (39.3) | 52 (32.7) | 35 (39.3) | ||
Bulky lymph nodes | 104 (60.5) | 47 (52.9) | 97 (64.0) | 47 (52.9) | ||
Clinical T stage | 0.579 | 0.535 | ||||
cT3 | 9 (5.2) | 7 (7.9) | 8 (5.0) | 7 (7.9) | ||
cT4 | 163 (94.8) | 82 (92.1) | 151 (95.0) | 82 (92.1) | ||
Clinical N stage | 0.485 | 0.459 | ||||
cN1 | 56 (32.6) | 32 (36.0) | 52 (32.7) | 32 (36.0) | ||
cN2 | 73 (42.4) | 31 (34.8) | 68 (42.8) | 31 (34.8) | ||
cN3 | 43 (25.0) | 26 (29.2) | 39 (24.5) | 26 (29.2) | ||