Table I.

Patient pretreatment characteristics.

Characteristics	No. of patients
Total patient no.	78
Age (years)
Mean	65
Range	41–79
Gender
Male	56
Female	22
Pathological type
Squamous cell carcinoma	77
Adenocarcinoma	1
Lesion site
Cervical	6
Upper thoracic	28
Middle thoracic	36
Lower thoracic	8
Primary lesion length (cm)
≤5	20
>5	58
Clinical stage
II	58
III	16
IV	4