Table 1.

Patient characteristics

Characteristics	Number of patients
Gender
Male	41
Female	7
Age (years)
Median	72
Range	51–87
Performance status (ECOG)
0	14
1	33
2	1
Histology
Adenocarcinoma	16
Squamous cell carcinoma	15
Small cell carcinoma	12
Large cell carcinoma	1
Others	4

ECOG, Eastern Cooperative Oncology Group.