Table 1:
Univariate analysis for disease-free survival
| No. of patients | DFS | P-value | |
|---|---|---|---|
| Age (years) | 0.035 | ||
| ≤54 | 27 | 24.8 | |
| >54 | 57 | 46.3 | |
| Sex | 0.891 | ||
| Male | 47 | 41.9 | |
| Female | 37 | 34.8 | |
| Tumour location | 0.274 | ||
| Colon | 50 | 36.2 | |
| Rectum | 34 | 48.5 | |
| BMI before CRC (kg/m2) | 0.261 | ||
| <23.8 | 34 | 49.2 | |
| >23.8 | 50 | 30.7 | |
| Smoking | 0.599 | ||
| Never | 71 | 39.8 | |
| Ever | 13 | 49.2 | |
| Albumin level before CRC (mg/dl) | 0.131 | ||
| >4.0 | 42 | 32.2 | |
| <4.0 | 42 | 49.4 | |
| CEA level before CRC (ng/ml) | 0.141 | ||
| <6.0 | 50 | 37.0 | |
| >6.0 | 34 | 41.0 | |
| Number | 0.001 | ||
| 1 | 35 | 58.5 | |
| >1 | 49 | 29.0 | |
| Disease-free interval (months) | 0.027 | ||
| >12 | 48 | 52.3 | |
| <12 | 36 | 23.6 | |
| DFI, CTx related | 0.012 | ||
| Synchronous | 21 | 20.5 | |
| During CTx | 12 | 25.7 | |
| After CTx | 44 | 48.7 | |
| DFI | 0.005 | ||
| Synchronous + during CTx | 33 | 22.9 | |
| After CTx | 44 | 48.7 | |
| Size of PM (cm) | 0.163 | ||
| <1.8 | 65 | 44.8 | |
| >1.8 | 19 | 32.8 | |
| mSUV of PM | 0.172 | ||
| <1.2 | 18 | 43.9 | |
| >1.2 | 53 | 37.1 | |
| BMI before PM (kg/m2) | 0.129 | ||
| >24.1 | 33 | 43.2 | |
| <24.1 | 51 | 35.3 | |
| CEA level before PM (ng/ml) | 0.020 | ||
| <6.1 | 71 | 47.7 | |
| >6.1 | 13 | 17.4 | |
| Albumin level before PM (mg/dl) | 0.588 | ||
| >4.3 | 52 | 35.8 | |
| <4.3 | 32 | 35.8 |
BMI: body mass index; CRC: colorectal cancer; mSUV: maximum standard uptake value; CEA: carcinoembryonic antigen; DFI: disease-free interval; CTx: chemotherapy; PM: pulmonary metastasis; DFS: disease-free survival.