Table 1. Patient characteristics.

Characteristic		Patients
Sex	Male	34
	Female	14
Age (y)	Mean	64
	Range	[48–85]
Histology	Adenocarcinoma	28
	Squamous cell carcinoma	13
	Other	7
T stage	T1	12
	T2	28
	T3	6
	T4	2
N stage	N0	33
	N1	7
	N2	8