Table 3.

Multivariate Cox regression analysis of patients with pulmonary mucoepidermoid carcinoma.

Influencing factor	Index (B)	Standard error (SE)	Wald chi-squared value	P value	95% CI
Age	-0.055	0.031	3.25	0.071	0.891	1.005
Sex	-1.754	1.163	2.274	0.132	0.018	1.692
Tissue differentiation level	-3.797	1.763	4.638	0.031	0.001	0.711
Lymph node metastasis	12.633	171.795	0.005	0.941	0	5234
III+IV stage	1.732	1.41	1.51	0.219	0.357	89.52