Table I.

Patient demographic and clinical characteristics

Parameter	Number of patients (%)
Gender
Male	45(90)
Female	5(10)
Age
Range	45–84
Median	69
Site
Upper esophagus	13(26)
Middle esophagus	20(40)
Lower esophagus	17(34)
Histology type
Adenocarcinoma	14(28)
Squamous cell carcinoma	36(72)
Histology differentiation
Well differentiated	14(28)
Moderately differentiated	12(24)
Poorly differentiated	5(10)
Unknown	19(38)
TNM Stage
T1	7(14)
T2	8(16)
T3	24(48)
T4	11(22)
N0	20(40)
N1	30(60)
M0	34(68)
M1	16(32)
AJCC Stage
I	4(8)
IIA	8(16)
IIB	6(12)
III	16(32)
IVA	16(32)