Table 2.

Patient characteristics enrolled in this study (n = 97)

Characteristics	Platinum-based Chemotherapy	Oral tegaful Chemotherapy	P value
Patients, number	51	46
Age (mean), year	65.9	68.0	0.248
Sex			0.287
Male	36	27
Female	15	19
Histology			0.897
Adenocarcinoma	33	32
Squamous cell carcinoma	10	7
Large cell carcinoma	5	3
Adenoaquamous carcinoma	1	1
Pleomorphic carcinoma	2	3
Tumor size (mean), mm	37.7	34.3	0.220
Pathological nodal status			0.009
pN0	22	34
pN1	14	5
pN2	15	7
Cyclooxygenase-2 expression			0.819
negative	21	20
positive	30	26