Table 2.
Multivariate regression: factors associated with metastases
| Characteristic | Odds ratio (95% CI) | p |
|---|---|---|
| Metastases on PET-CT: pre-PET-CT variables | ||
| Age | 0.99 (0.95–1.03) | 0.599 |
| Gender | ||
| Female | Reference | Reference |
| Male | 0.59 (0.22–1.59) | 0.297 |
| Tumor site | ||
| Proximal | Reference | Reference |
| Body | 0.77 (0.23–2.60) | 0.669 |
| Distal | 0.64 (0.21–1.96) | 0.438 |
| Linitis | 0.80 (0.07–8.58) | 0.854 |
| Lauren classification | ||
| Intestinal | Reference | Reference |
| Diffuse | 1.94 (0.67–5.67) | 0.224 |
| T stage | ||
| x/1 | Reference | Reference |
| 2/3 | 0.57 (0.13–2.51) | 0.454 |
| 4 | 1.97 (0.42–9.31) | 0.393 |
| N stage | ||
| 0 | Reference | Reference |
| ≥ 1 | 5.86 (1.67–20.6) | 0.006 |
| Metastases on PET-CT: all variables | ||
| Age | 1.00 (0.95–1.04) | 0.926 |
| Gender | ||
| Female | Reference | Reference |
| Male | 0.55 (0.19–1.55) | 0.260 |
| Tumor site | ||
| Proximal | Reference | Reference |
| Body | 1.05 (0.28–3.88) | 0.945 |
| Distal | 0.62 (0.19–2.06) | 0.438 |
| Linitis | 1.22 (0.09–15.9) | 0.881 |
| Lauren classification | ||
| Intestinal | Reference | Reference |
| Diffuse | 1.19 (0.37–2.81) | 0.764 |
| T stage | ||
| x/1 | Reference | Reference |
| 2/3 | 0.43 (0.09–2.06) | 0.293 |
| 4 | 1.56 (0.30–8.14) | 0.599 |
| N stage | ||
| 0 | Reference | Reference |
| ≥ 1 | 3.78 (0.96–15.0) | 0.058 |
| mN | ||
| 0 | Reference | Reference |
| ≥ 1 | 3.97 (1.33–11.9) | 0.014 |
| SUVmax | 1.04 (0.99–1.10) | 0.148 |