Table 3 Univariate analysis of the risk factors for lymph node metastases
Variables | OR (95% CI) | P value |
|---|---|---|
Age | ||
≤ 60 vs >60 | 0.75 (0.44–1.30) | 0.304 |
Gender | ||
male vs female | 1.0 (0.58–1.72) | 0.997 |
Pathology | ||
Squamous cell carcinoma VS Adenocarcinoma | 0.60 (0.28–1.27) | 0.179 |
Tumor location | ||
Right lobes vs Left lobes | 1.00 (0.57–1.77) | 0.98 |
Upper lobes vs Middle +Left lobes | 1.45 (0.82–2.56) | 0.199 |
Single lobes vs Mixed lobes | 1.12 (0.39–3.24) | 0.832 |
Differentiation | ||
I VS II + III | 6.22 (2.58–15.03) | <0.001* |
Tumor size | ||
≤ 2.65 cm vs >2.65 cm | 4.62 (2.59–8.24) | <0.001* |
Pleura invasion | ||
Absent vs Present | 1.93 (1.05–3.54) | 0.034* |
Bronchus invasion | ||
Absent vs Present | 3.64 (1.78–7.44) | <0.001* |
Multicentric invasion | ||
Absent vs Present | 1.04 (0.36–2.98) | 0.939 |
Angiolymphatic invasion | ||
Absent vs Present | 2.14 (0.59–7.83) | 0.249 |