Table 2.
Baseline characteristics of the patients (N = 4389)
| Variable | no-post-CKD group (n = 3313) | post-CKD group (n = 1076) | p-value |
|---|---|---|---|
| Sex | 0.001 | ||
| Male | 2260 (68.2%) | 790 (73.4%) | |
| Female | 1053 (31.8%) | 286 (26.6%) | |
| DM | < 0.001 | ||
| None | 2885 (87.1%) | 853 (79.3%) | |
| DM | 428 (12.9%) | 223 (20.7%) | |
| HTN | < 0.001 | ||
| None | 2172 (65.6%) | 561 (52.1%) | |
| HTN | 1141 (34.4%) | 515 (47.9%) | |
| Smoking | 0.194 | ||
| Non-smoker | 1877 (56.7%) | 597 (55.5%) | |
| Ex-smoker | 845 (25.5%) | 261 (24.3%) | |
| Current smoker | 591 (17.8%) | 218 (20.3%) | |
| ECOG | < 0.001 | ||
| 0 | 2794 (84.3%) | 829 (77.0%) | |
| 1 | 481 (14.5%) | 221 (20.5%) | |
| 2 | 31 (0.9%) | 20 (1.9%) | |
| 3 | 3 (0.1%) | 5 (0.5%) | |
| 4 | 4 (0.1%) | 1 (0.1%) | |
| Hb (g/dL) | 13.8 ± 1.7 | 13.7 ± 1.7 | 0.017 |
| Creatinine (mg/dL) | 0.8 ± 0.2 | 1.0 ± 0.2 | < 0.001 |
| Albumin (g/dL) | 4.4 ± 0.4 | 4.3 ± 0.4 | < 0.001 |
| Calcium (mg/dL) | 9.3 ± 0.9 | 9.2 ± 0.6 | < 0.001 |
eGFR (ml/min/1.73 ) |
94.7 ± 15.6 | 77.7 ± 12.5 | < 0.001 |
| Tumor size (cm) | 38.6 ± 26.8 | 52.4 ± 27.9 | < 0.001 |
| Tumor location | < 0.001 | ||
| exophytic | 1694 (51.1%) | 564 (52.4%) | |
| mesophytic | 560 (16.9%) | 133 (12.4%) | |
| endophytic | 676 (20.4%) | 167 (15.5%) | |
| hilar | 337 (10.2%) | 151 (14.0%) | |
| unknown | 46 (1.4%) | 61 (5.7%) |