Table 1.

The relationship between S100A1 expression and pathologic features of 86 papillary thyroid carcinoma patients

	N=86	S100A1		X2	P value
		High=52	Low=34
Gender
Male	18	12	6	0.3662	0.5451
Female	68	40	28
Age(year)
<45	35	22	13	0.1413	0.7070
≥45	51	30	21
Extrathyroidal extension
Yes	9	4	5	1.079	0.2989
No	77	48	29
Tumor size
<1cm	49	23	26	8.717	0.0032*
≥1cm	37	29	8
Bilateral PTC
Yes	15	11	4	1.259	0.2619
No	71	41	30
Lymph node metastasis
Yes	50	35	15	4.543	0.0331*
No	36	17	19

Statistical significance was tested using Chi-square analysis (* P<0.05).