Table 4. Multivariate analysis of positive node.
| Variables | Positive node |
Positive N1 node |
Positive N2 node |
|||||
|---|---|---|---|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | OR (95% CI) | P value | |||
| Size | 4.597 (1.427-14.815) | 0.011 | 7.524 (1.608-35.211) | 0.01 | 4.284 (1.276-14.382) | 0.019 | ||
| Non-UL | 2.758 (1.345-5.656) | 0.006 | 3.343 (1.412-7.916) | 0.006 | 2.577 (1.204-5.516) | 0.015 | ||
| CEA | 1.195 (1.072-1.331) | 0.001 | 1.205 (1.076-1.349) | 0.001 | 1.099 (1.030-1.173) | 0.004 | ||
| MPA | 3.875 (1.374-10.933) | 0.01 | 3.955 (1.280-12.221) | 0.017 | 4.038 (1.481-11.010) | 0.006 | ||
UL, upper lobes; CEA, carcinoembryonic antigen; MPA, micropapillary adenocarcinoma; OR, odds ratio; CI, confidence interval.