Table 1. Patients characteristics according to ABO blood type.
|
ABO blood type (%) |
|||||||
|---|---|---|---|---|---|---|---|
|
Non-AB |
|||||||
| Characteristics | Number of Patients (%) | AB | A/B/O | A | B | O | Pa |
| Total |
1555 |
123 (7.8%) |
1432 (92.2%) |
452 (29.1%) |
382 (24.6%) |
598 (38.5%) |
|
| Rh factor |
|
|
|
|
|
|
0.481 |
| Positive | 1547 (99.5%) | 122 (99.2%) | 1425 (99.5%) | 450 (99.6%) | 380 (99.5%) | 595 (99.5%) | |
| Negative |
8 (0.005%) |
1 (0.8%) |
7 (0.5%) |
2 (0.4%) |
2 (0.5%) |
3 (0.5%) |
|
| Age, yearsb |
|
|
|
|
|
|
0.195 |
| Median | 59 | 63 | 59 | 58 | 60 | 58 | |
| <45 | 299 (19.2%) | 18 (14.6%) | 281 (19.6%) | 86 (19.0%) | 75 (19.6%) | 120 (20.1%) | |
| 45–59 | 493 (31.7%) | 35 (28.5%) | 458 (32.0%) | 147 (32.5%) | 113 (29.6%) | 198 (33.1%) | |
| ⩾60 |
763 (49.1%) |
70 (56.9%) |
693 (48.4%) |
219 (48.5%) |
194 (50.8%) |
280 (46.8%) |
|
| Gender |
|
|
|
|
|
|
0.135 |
| Female | 690 (44.4%) | 63 (51.2%) | 627 (43.8%) | 218 (48.2%) | 173 (45.3%) | 236 (39.5%) | |
| Male |
865 (55.6%) |
60 (48.8%) |
805 (56.2%) |
234 (51.8%) |
209 (54.7%) |
362 (60.5%) |
|
| BMI, kg m−2
c |
|
|
|
|
|
|
0.027 |
| Median | 21.5 | 21.6 | 21.5 | 20.9 | 22.0 | 21.5 | |
| <18.5 | 238 (15.3%) | 10 (8.1%) | 228 (15.9%) | 88 (19.5%) | 45 (11.8%) | 95 (15.9%) | |
| 18.5–23.9 | 944 (60.7%) | 77 (62.6%) | 867 (60.5%) | 281 (62.2%) | 222 (58.1%) | 364 (60.9%) | |
| ⩾24 |
373 (24.0%) |
36 (29.3%) |
337 (23.6%) |
83 (18.3%) |
115 (30.1%) |
139 (23.2%) |
|
| Smoking statue |
|
|
|
|
|
|
0.08 |
| Never | 839 (54.0%) | 57 (46.3%) | 782 (54.6%) | 240 (53.1%) | 209 (54.7%) | 333 (55.6%) | |
| Past | 327 (21.0%) | 36 (29.3%) | 291 (20.3%) | 105 (23.2%) | 87 (22.8%) | 99 (16.6%) | |
| Current |
389 (25.0%) |
30 (24.4%) |
359 (25.1%) |
107 (23.7%) |
86 (22.5%) |
166 (27.8%) |
|
| Location |
|
|
|
|
|
|
<0.001 |
| Left | 941 (60.5%) | 96 (78.0%) | 845 (59.0%) | 258 (57.1%) | 206 (53.9%) | 381 (63.7%) | |
| Right |
614 (39.5%) |
27 (22.0%) |
587 (41.0%) |
194 (42.9%) |
176 (46.1%) |
217 (36.3%) |
|
|
Pathology | |||||||
| Adenocarcinoma |
1555 (100%) |
123 (7.8%) |
1432 (92.2%) |
452 (29.1%) |
382 (24.6%) |
598 (38.5%) |
|
| pT status |
|
|
|
|
|
|
0.055 |
| pT1 | 54 (3.5%) | 3 (2.4%) | 51 (3.6%) | 9 (2.0%) | 18 (4.7%) | 24 (4.0%) | |
| pT2 | 207 (13.3%) | 15 (12.2%) | 192 (13.4%) | 51 (11.3%) | 45 (11.8%) | 96 (16.1%) | |
| pT3 | 619 (39.8%) | 36 (29.3%) | 583 (40.7%) | 209 (46.2%) | 162 (42.4%) | 212 (35.5%) | |
| pT4 |
675 (43.4%) |
69 (56.1%) |
606 (42.3%) |
183 (40.5%) |
157 (41.1%) |
266 (44.4%) |
|
| pN status |
|
|
|
|
|
|
0.068 |
| pN0 | 1011 (65.0%) | 69 (56.1%) | 942 (65.8%) | 294 (65.1%) | 244 (63.9%) | 404 (67.6%) | |
| pN1 | 391 (25.1%) | 35 (28.5%) | 356 (24.8%) | 96 (21.2%) | 117 (30.6%) | 143 (23.9%) | |
| pN2 |
153 (9.9%) |
19 (15.4%) |
134 (9.4%) |
62 (13.7%) |
21 (5.5%) |
51 (8.5%) |
|
| Grade |
|
|
|
|
|
|
0.172 |
| Grade I | 93 (6.0%) | 12 (9.8%) | 81 (5.7%) | 30 (6.6%) | 21 (5.5%) | 30 (5.0%) | |
| Grade II | 1256 (80.8%) | 95 (77.2%) | 1161 (81.1%) | 341 (75.5%) | 322 (84.3%) | 498 (83.3%) | |
| Grade III |
206 (13.2%) |
16 (13.0%) |
190 (13.2%) |
81 (17.9%) |
39 (10.2%) |
70 (11.7%) |
|
| pTNM stage |
|
|
|
|
|
|
0.076 |
| Stage I | 228 (14.7%) | 12 (9.8%) | 216 (15.1%) | 54 (11.9%) | 54 (14.1%) | 108 (18.1%) | |
| Stage II | 783 (50.4%) | 57 (46.3%) | 726 (50.7%) | 240 (53.1%) | 190 (49.8%) | 296 (49.5%) | |
| Stage III |
544 (35.0%) |
54 (43.9%) |
490 (34.2%) |
158 (35.0%) |
138 (36.1%) |
194 (32.4%) |
|
| Chemotherapy |
|
|
|
|
|
|
0.572 |
| Yes | 917 (59.0%) | 69 (56.1%) | 848 (59.2%) | 249 (55.1%) | 237 (62.0%) | 362 (60.5%) | |
| No |
638 (41.0%) |
54 (43.9%) |
584 (40.8%) |
203 (44.9%) |
145 (38.0%) |
236 (39.5%) |
|
| Operationd |
|
|
|
|
|
|
0.462 |
| Elective | 1454 (93.5%) | 116 (95.1%) | 1338 (93.4%) | 416 (92.0%) | 358 (93.7%) | 564 (94.3%) | |
| Emergency |
101 (6.5%) |
7 (4.9%) |
94 (6.6%) |
36 (8.0%) |
24 (6.3%) |
34 (5.7%) |
|
| Postoperative complicatione |
|
|
|
|
|
|
0.626 |
| No | 1463 (94.1%) | 117 (95.1%) | 1347 (94.1%) | 422 (93.4%) | 355 (92.95) | 570 (95.3%) | |
| Yes | 92 (5.9%) | 6 (4.9%) | 85 (5.9%) | 30 (6.6%) | 27 (7.1%) | 28 (4.7%) | |
Abbreviations: BMI=body mass index; pN status=pathological node status; pT statue=pathological tumour status; pTNM status=pathological tumour-node-metastasis stage.
a
χ2 test (AB blood type vs non-AB blood type).
b
World Health Organization criteria.
c
Chinese definition.
d
Emergency includes lose blood, obstruction, and perforation.
e
Postoperative complication includes infection, anastomotic leak, and various reasons result in re-operation and/or prolonged hospitalisation.