TABLE 2.

Univariate analysis of influencing factors on RFS of patients

	Univariate analysis
	HR (95% CI)	p
Smoking history
Yes or no	1.698 (1.015–2.838)	0.044
Gender
Male or Female	1.808 (0.646–1.807)	0.769
Age(years)
≥60 or <60	0.808 (0.507–1.286)	0.369
Number of tumors
Single or multiple	2.072 (1.300–3.301)	0.002
Tumor size
≥3 cm or <3 cm	0.572 (0.356–0.917)	0.020
Pathological grade
Low‐grade or high‐grade	2.485 (1.566–3.945)	<0.001
Pathological stage
Ta or T1	1.981 (1.102–3.559)	0.022
NLR
≥1.615 or <1.615	0.328 (0.192–0.559)	<0.001
SII
≥276.685 or <276.685	0.288 (0.148–0.561)	<0.001
NHL
≥252.645 or <252.645	0.357 (0.222–0.575)	<0.001

Abbreviations: NLR, neutrophil‐lymphocyte ratio; SII, systemic immune inflammation index; NHL, neutrophil hemoglobin product to lymphocyte ratio.