Table 2 Demographic and clinical characteristics of all included patients after propensity score matching
Patient characteristics | Before matching | p | After matching | p | ||||
|---|---|---|---|---|---|---|---|---|
Total (No. %) | dMMR (No. %) | pMMR (No. %) | Total (No. %) | dMMR (No. %) | pMMR (No. %) | |||
TNM |  |  |  | < 0.001 |  |  |  | 0.558 |
 II | 781 | 193 (72.0%) | 588 (53.6%) |  | 538 (70.1%) | 188 (34.9%) | 350 (65.1%) |  |
 III | 584 | 75 (28.0%) | 509 (46.4%) |  | 229 (29.9%) | 75 (32.8%) | 154 (67.2%) |  |
Sex | Â | Â | Â | 0.071 | Â | Â | Â | 0.400 |
 Male | 746 | 136 (50.7%) | 610 (55.6%) |  | 404 (52.7%) | 133 (32.9%) | 271 (67.1%) |  |
 Female | 619 | 132 (49.3%) | 487 (44.4%) |  | 363 (47.3%) | 130 (35.8%) | 233 (64.2%) |  |
Age | Â | Â | Â | 0.005 | Â | Â | Â | 0.777 |
 ≤60 | 497 | 109 (40.7%) | 388 (35.4%) |  | 298 (38.9%) | 104 (34.9%) | 194 (65.1%) |  |
 > 60 | 868 | 159 (59.3%) | 709 (64.6%) |  | 469 (61.1%) | 159 (33.9%) | 310 (66.1%) |  |
Chemotherapy | Â | Â | Â | 0.106 | Â | Â | Â | 0.333 |
 No | 572 | 119 (44.4%) | 453 (41.3%) |  | 320 (41.7%) | 116 (36.3%) | 204 (63.7%) |  |
 Yes | 793 | 149 (55.6%) | 644 (58.7%) |  | 447 (58.3%) | 147 (32.9%) | 300 (67.1%) |  |
Location |  |  |  | < 0.001 |  |  |  | 0.807 |
 Proximal colon | 632 | 179 (66.8%) | 453 (41.3%) |  | 503 (65.6%) | 174 (34.6%) | 329 (65.4%) |  |
 Distal colon | 733 | 89 (33.2%) | 644 (58.7%) |  | 264 (34.4%) | 89 (33.7%) | 175 (66.3%) |  |
Total | 1365 | 268 (19.6%) | 1097 (80.4%) | Â | 767 | 263 (34.3%) | 504 (65.7%) | Â |