Significance of SUV Max for Predicting Occult Lymph Node Metastasis and Prognosis in Early-Stage Tongue Squamous Cell Carcinoma

Table 1

Univariate analysis of the association between clinical pathologic variables and occult lymph node metastasis in cT1-2N0 tongue squamous cell carcinoma patients.

Clinical pathologic variables	Occult metastasis	Chi-test
	Positive (n = 18)	Negative (n = 102)
Age
≤40	3	10
>40	15	92	0.411
Sex
Male	14	77
Female	4	25	1.000
Smoking
Yes	14	72
No	4	30	0.533
Drinking
Yes	10	52
No	8	50	0.720
SUV max
≤9.7	5	55
>9.7	13	47	0.041
Clinical tumor stage
cT1	4	45
cT2	14	57	0.118
Pathologic tumor stage
pT1	2	41
pT2	16	61	0.030
Perineural invasion
Yes	4	12
No	14	90	0.259
Lymphovascular invasion
Yes	3	11
No	15	91	0.691
Tumor differentiation
Well	3	39
Moderate	10	53
Poor	5	10	0.046