Table 1.
Baseline characteristics and clinical features of TCM group and the control group before and after PSM.
| Group | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
| TCM n = 285 | Control n = 244 | p value | TCM n = 175 | Control n = 175 | p value | |
| Gender | ||||||
| Male | 170 (59.6) | 147 (60.2) | 0.889 | 106 (60.6) | 102 (58.3) | 0.663 |
| Female | 115 (40.4) | 97 (39.8) | 69 (39.4) | 73 (41.7) | ||
| Pathology | ||||||
| None | 16 (5.6) | 9 (3.7) | 0.247 | 11 (6.3) | 8 (4.6) | 0.510 |
| Adenocarcinoma | 259 (90.9) | 226 (92.6) | 160 (91.4) | 159 (90.9) | ||
| Squamous cell Ca | 1 (0.4) | 4 (1.6) | 1 (0.6) | 4 (2.3) | ||
| Others | 9 (3.2) | 5 (2.0) | 3 (1.7) | 4 (2.3) | ||
| Stage | ||||||
| I | 17 (6.0) | 24 (9.8) | <0.001∗ | 14 (8.0) | 10 (5.7) | 0.538 |
| II | 58 (20.4) | 93 (38.1) | 44 (25.1) | 57 (32.6) | ||
| III | 90 (31.6) | 71 (29.1) | 66 (37.7) | 60 (34.3) | ||
| IV | 120 (42.1) | 56 (23.0) | 51 (29.1) | 48 (27.4) | ||
| Histodifferentiation | ||||||
| Unknown | 40 (14.0) | 18 (7.4) | 0.005∗ | 21 (12.0) | 16 (9.1) | 0.460 |
| Low | 14 (4.9) | 8 (3.3) | 3 (1.7) | 8 (4.6) | ||
| Moderate | 179 (62.8) | 151 (61.9) | 110 (62.9) | 97 (55.4) | ||
| Moderate-low | 16 (5.6) | 47 (19.3) | 11 (6.3) | 35 (20.0) | ||
| Moderate-high | 36 (12.6) | 20 (8.2) | 30 (17.1) | 19 (10.9) | ||
| Location | ||||||
| Rectum | 115 (40.4) | 45 (18.4) | ＜0.001∗ | 43 (24.6) | 43 (24.6) | 1 |
| Colon | 170 (59.6) | 199 (81.6) | 132 (75.4) | 132 (75.4) | ||
| Surgery | ||||||
| Yes | 258 (90.5) | 224 (91.8) | 0.607 | 158 (90.3) | 160 (91.4) | 0.711 |
| No | 27 (9.5) | 20 (8.2) | 17 (9.7) | 15 (8.6) | ||
| Chemotherapy | ||||||
| Yes | 221 (77.5) | 198 (81.1) | 0.309 | 143 (81.7) | 145 (82.9) | 0.779 |
| No | 64 (22.5) | 46 (18.9) | 32 (18.3) | 30 (17.1) | ||
| Hypertension | ||||||
| Yes | 79 (27.7) | 81 (33.2) | 0.172 | 53 (30.3) | 50 (28.6) | 0.725 |
| No | 206 (72.3) | 163 (66.8) | 122 (69.7) | 125 (71.4) | ||
| Diabetes | ||||||
| Yes | 75 (26.3) | 65 (26.6) | 0.933 | 47 (26.9) | 32 (18.3) | 0.055 |
| No | 210 (73.7) | 179 (73.4) | 128 (73.1) | 143 (81.7) | ||
| Smoking | ||||||
| Yes | 122 (42.8) | 60 (24.6) | ＜0.001∗ | 56 (32.0) | 54 (30.9) | 0.818 |
| No | 163 (57.2) | 184 (75.4) | 119 (68.0) | 121 (69.1) | ||
| Drinking | ||||||
| Yes | 68 (23.9) | 55 (22.5) | 0.720 | 35 (20.0) | 36 (20.6) | 0.894 |
| No | 217 (76.1) | 189 (77.5) | 140 (80.0) | 139 (79.4) | ||
| Intestinal obstruction | ||||||
| Yes | 33 (11.6) | 45 (18.4) | 0.026∗ | 23 (13.1) | 31 (17.7) | 0.236 |
| No | 252 (88.4) | 199 (81.6) | 152 (86.9) | 144 (82.3) | ||
| Family history | ||||||
| Yes | 89 (31.2) | 58 (23.8) | 0.056 | 50 (28.6) | 47 (26.9) | 0.720 |
| No | 196 (68.8) | 186 (76.2) | 125 (71.4) | 128 (73.1) | ||
| Age | ||||||
| >60 | 220 (77.2) | 204 (83.6) | 0.065 | 146 (83.4) | 140 (80.0) | 0.407 |
| ≤60 | 65 (22.8) | 40 (16.4) | 29 (16.6) | 35 (20.0) | ||
PSM: propensity scores matching; ∗p < 0.05, there was a significant statistical difference in the subgroup.