Table 3.

Clinical and pathological characteristics of 786 patients with non-small cell lung carcinoma (NSCLC).

	Total		Adenocarcinoma (AC)		Squamous Cell Carcinoma (SCC)
Characteristics	N = 786	%	N = 307	%	N = 324	%
Age
≤50	38	4.8	20	6.5	9	2.8
>50	749	95.2	287	93.5	315	97.2
Gender
Male	574	73	199	64.8	264	81.5
Female	212	27	108	35.2	60	18.5
Tumor grade
G1	43	5.5	28	9.1	10	3.1
G2	572	72.8	204	66.4	258	79.6
G3	138	17.6	72	23.5	53	16.4
G4	0	0	0	0	0	0
N/A	33	4.2	3	1	3	0.9
Tumor size
pT1	208	26.5	78	25.4	86	26.5
pT2	341	43.4	175	57	141	43.5
pT3	156	19.8	51	16.6	66	20.4
pT4	81	10.3	3	1	31	9.6
Lymph nodes
pN0	521	66.3	193	62.9	215	66.4
pN1	144	18.3	46	15	77	23.7
pN2	121	15.4	68	22.1	32	9.9
Metastases
M0	780	99.2	303	98.7	323	99.7
M1	6	0.8	4	1.3	1	0.3
Stage
I	295	37.5	117	38.1	121	37.3
II	263	33.5	86	28	124	38.3
III	221	28.1	101	32.9	78	24.1
IV	7	0.9	3	1	1	0.3
Smoking status
Neg.	121	15.4	53	17.3	27	8.3
Pos.	665	84.6	254	82.7	297	91.7
Living in the city
Neg.	731	93	288	93.8	299	92.3
Pos.	55	7	19	6.2	25	7.7
Distal Metastases
Absent	786	100	307	100	324	100
Present	0	0	0	0	0	0
p63
Neg.	205	26.1	134	43.6	18	5.6
Pos.	571	72.6	169	55.1	304	93.8
N/A	10	1.3	4	1.3	2	0.6
TTF-1
Neg.	220	28	30	9.8	134	41.4
Pos.	556	70.7	271	88.2	187	57.7
N/A	10	1.3	6	2	3	0.9
EGFR
Neg.	469	59.7	220	71.7	143	44.1
Pos.	317	40.3	87	28.3	181	55.9

TTF-1, Thyroid transcription factor-1; EGFR, epithelial growth factor; N/A, non-available.