Table 2 Univariate analyses of prognostic factors for overall survival of patients with TSCC

Age: ≤67 years vs. > 67 years

1.28

(0.34–4.76)

0.715

Sex: female vs. male

0.31

(0.08–1.22)

0.094

Pathological T stage: T1/2 vs. T3/4a

2.21

(0.59–8.26)

0.24

Metastasis of cervical lymph node: Absent vs. Present

6.20

(1.53–25.14)

0.011

TNM stage: I-II vs. III-IV

5.02

(1.04–24.32)

0.045

Tumor size(mm): ≤25 mm vs. > 25 mm

2.62

(0.66–10.51)

0.173

Depth of Invasion(mm): ≤8 mm vs. > 8 mm

2.70

(0.67–10.87)

0.161

Histological differentiation: Mod/Poor vs. Well

0.64

(0.17–2.40)

0.513

Mode of invasion (YK classification): 1–3 vs. 4 C/4D

2.24

(0.60–8.34)

0.231

Visual Type of proliferation: Superficial/Exophytic vs. Endophytic

0.26

(0.06–1.03)

0.055

Venous invasion: Negative vs. Positive

1.23

(0.33–4.57)

0.761

Perineural invasion: Negative vs. Positive

3.21

(0.80-12.88)

0.099

Lymph duct invasion: Negative vs. Positive

2.50

(0.62–10.01)

0.196

IgG4 expression: Low vs. High

0.22

(0.05–1.07)

0.061

Foxp3 expression: Low vs. High

0.21

(0.04–1.04)

0.055