Table 1.
Descriptive analysis of colorectal cancer risk factors and log-rank test for non-cured patients
| Factors | Patients, n (%) | Deaths, n (%) | Log-rank test |
||
|---|---|---|---|---|---|
| Mean survival time (yr) | SE | p-value | |||
| Age at diagnosis (yr) | 0.19 | ||||
| <45 | 146 (28.5) | 31 (35.2) | 3.42 | 0.12 | |
| 45-65 | 256 (50.0) | 39 (44.3) | 3.40 | 0.14 | |
| >65 | 110 (21.5) | 18 (20.5) | 3.41 | 0.10 | |
| BMI (kg/m2) | 0.007 | ||||
| ≤18.5 | 46 (9.0) | 14 (15.9) | 2.64 | 0.25 | |
| 18.6-24.9 | 266 (51.9) | 52 (59.1) | 3.28 | 0.16 | |
| 25.0-29.9 | 157 (30.7) | 16 (18.2) | 3.67 | 0.16 | |
| >29.9 | 43 (8.4) | 6 (6.8) | 3.66 | 0.23 | |
| Tumor grade | <0.001 | ||||
| Well | 289 (56.4) | 34 (38.6) | 3.63 | 0.11 | |
| Moderately | 177 (34.6) | 38 (43.2) | 3.19 | 0.17 | |
| Poorly | 46 (9.0) | 16 (18.2) | 2.73 | 0.29 | |
| Gender | 0.82 | ||||
| Men | 309 (60.3) | 55 (62.5) | 3.42 | 0.13 | |
| Women | 203 (39.6) | 33 (37.5) | 3.40 | 0.14 | |
| Pathologic stage of the primary tumor | 0.15 | ||||
| T0 | 439 (85.7) | 63 (71.6) | 3.40 | 0.09 | |
| T1 | 73 (14.3) | 25 (28.4) | 3.22 | 0.21 | |
SE, standard error; BMI, body mass index.