Table 4 Multivariate analyses of prognostic variables in patients with squamous cell carcinoma of the lung

Gender(male/female)

0.514

0.20-1.32

0.1666

Age

1.011

0.973-1.050

0.586

Lymph node metastasis -/+

2.257

1.136-4.464

0.02

NMDAR2B methylation -/+

0.381

0.188-0.775

0.0077

Gender(male/female)

0.474

0.183-1.228

0.1241

Age

1.012

0.975-1.051

0.5196

Stage I, II/III, IV

2.096

0.971-4.525

0.0596

NMDAR2B methylation -/+

0.336

0.165-0.684

0.0026