Table 2.
Statistical analysis
| Logistic regression | |||
|---|---|---|---|
| Parameter | Odds ratio | 95 % confidence limits | p valuea |
| T stageb | 2.11 | 1.21, 3.81 | 0.0078 |
| N stage | |||
| N1 vs N0 | 5.42 | 2.38, 12.31 | 0.2446 |
| N2 vs N0 | 4.75 | 1.80, 12.48 | 0.5714 |
| N3 vs N0 | 9.34 | 3.06, 28.50 | 0.0252 |
| Stage groupingb | 2.93 | 1.74, 5.13 | <0.0001 |
| Neoadjuvant chemotherapy done | 4.73 | 2.29, 9.77 | <0.0001 |
| FDG uptake present in ALN | 2.09 | 1.09, 4.02 | 0.0275 |
| Multiple logistic regression | |||
| Stage groupingb | 2.79 | 1.73, 4.48 | <0.0001 |
| Neoadjuvant chemotherapy done | 2.70 | 1.22, 5.98 | 0.0141 |
aValues in italics are statistically significant
bOdds ratio shown per one categorical unit increase to the next advanced stage