Table 1.

Summary of IHC labeling for S100 calcium binding protein A9 (S100A9) in normal and ESCC tissues.

	Parameters	Normal	ESCC
(1)	Positive	273	96
(a)	Strong (H-score 200–300)	84	4
(b)	Moderate (H-score 100–199)	112	16
(c)	Weak (H-score 50–99)	77	76
(2)	Negative (H-score 0–49)	15	192
(3)	p value	<0.001

N = 288.