Table 4. Comparison of serum levels of miR-21, HSP90α, and GASP-1 between the squamous cell carcinoma group and the adenocarcinoma group (x̄±s). Data compared using t-test.

Group	miR-21 level	HSP90α (pg/mL)	GASP-1 (ng/m)
The squamous cell carcinoma group<br>(n=31)	1.89±0.64	376.26±23.65	144.26±33.16
The adenocarcinoma group (n=49)	2.02±0.56	387.26±19.26	175.26±40.25
t	-1.142	-2.729	-4.207
p	0.256	0.007	0.000