Table I.

The clinicopathological characteristics and IHC staining for STMN1 of the HSCC patients.

	N	STMN1 IHC score	P-value
Age
<60 years	21	7.24±3.11	0.430
≥60 years	30	6.46±3.61
Gender
Male	47	6.79±3.36	0.824
Female	4	6.33±4.93
Tobacco smoking
None or limited	20	6.02±3.46	0.214
Excessive	31	7.25±3.35
Alcohol consumption
None or limited	14	5.85±3.94	0.242
Excessive	37	7.11±3.18
Differentiation
High differentiation	22	4.70±2.01	<0.001**
Moderate/poor differentiation	29	8.33±3.45
Tumor size (cm)
≤2	24	5.22±2.62	0.001**
>2	27	8.14±3.48
Clinical stage
I–II	19	4.59±2.23	<0.001**
III–IV	32	8.06±3.35
Lymph node metastasis
Negative	25	5.50±3.13	0.008**
Positive	26	7.98±3.27
Treatment
Surgery only	20	4.98±2.89	0.010*
Surgery and radiation	17	7.85±2.58
Surgery, radiation, chemotherapy	11	7.40±4.16
Other treatment	3	10.13±3.23

^aSTMN1 IHC score shown as mean ± SD.

^bStudent's t-test for two groups or one-way ANOVA for more than two groups.

^cThe number of fields by microscopy.

^dStatistically significant

^*P<0.05,

^**P<0.01.