Research Article

Preoperative Risk Assessment of Lymph Node Metastasis in cT1 Lung Cancer: A Retrospective Study from Eastern China

Table 2

Odds ratios of likelihood of lymph node metastasis stratified by seventh TNM staging using polytomous logistic regression.

VariableN1 metastasis ()N2 metastasis ()
Odds ratio (95% CI) value#Odds ratio (95% CI) value#

Male gender2.366 (0.726-7.707)0.1532.019 (0.868-4.697)0.103
Chronic pulmonary disease1.827 (0.665-5.021)0.2421.231 (0.489-3.102)0.659
Smoking history0.479 (0.138-1.663)0.2460.217 (0.080-0.590)0.003
Respiratory- or cancer-related symptoms1.558 (0.692-3.508)0.2840.741 (0.374-1.467)0.389
Adenocarcinoma histology1.742 (0.619-4.901)0.2930.849 (0.330-2.181)0.733
Consolidation size (cm)5.449 (2.817-10.541)<0.0018.640 (5.002-14.923)<0.001
Central location1.069 (0.448-2.547)0.8810.508 (0.255-1.014)0.055
Clinical nodal stage on CT
 Enlarged LNs in N1 station11.424 (3.316-39.360)<0.00114.046 (4.226-46.682)<0.001
 Enlarged LNs in N2 station1.615 (0.582-4.480)0.3578.703 (4.326-17.509)<0.001
Levels of serum CEA (ng/ml)0.932 (0.806-1.077)0.3401.063 (1.027-1.099)0.001

# value represented the comparison with N0 patients.