Table II.

Univariate and multivariate Cox analysis of overall survival time in patients with non-small cell lung cancer.

	Univariate cox analysis		Multivariate cox analysis
Clinicopathological characteristics	RR (95% CI)	P-value	RR (95% CI)	P-value
Age	0.645 (0.345–1.522)	0.876
Sex	1.064 (0.466–1.822)	0.487
Smoking history	1.224 (0.688–1.769)	0.285
Tumor size	1.031 (0.525–1.822)	0.502
Lymph node metastasis	1.968 (1.422–2.912)	0.003	1.882 (1.344–2.603)	0.007
Tumor differentiation	1.288 (1.088–2.112)	0.202
TNM stage	2.448 (1.556–3.554)	0.001	2.008 (1.322–3.113)	0.001
circ-0067934	2.677 (1.891–3.998)	0.001	2.133 (1.677–3.251)	0.001

circRNA, circular RNA; TNM, Tumor-Node-Metastasis; NSCLC, non-small cell lung cancer; RR, relative risk; CI, confidence interval.