The Role of FGFR1 Gene Amplification as a Poor Prognostic Factor in Squamous Cell Lung Cancer: A Meta-Analysis of Published Data

Table 2

Patients’ number of clinical characteristics.

	Histology		Gender		Smoking			pStage
	SQCC	ADE	Male	Female	C	N	F	III-IV	I-II
Seo et al. [29]	139	230	251	118	127	142	—	264	105
Cihoric et al. [26]	169	137	244	85	239	18	—	—	—
Toschi et al. [30]	138	243	369	76	—	—	—	265	180
Russell et al. [31]	178	117	222	130	69	258	223	261	91
Gadgeel et al. [22]	136	169	226	119	270	37	—	—	—
Craddock et al. [38]	—	—	77	44	43	65	61	89	32
Tran et al. [24]	101	115	169	95	165	9	—	223	41
Kim et al. [25]	—	—	245	17	107	155	—	198	64
Heist et al. [40]	—	—	128	98	45	181	172	155	61
Kohler et al. [28]	133	64	—	—	—	—	—	—	—
Sasaki et al. [23]	—	—	71	29	76	24	—	—	—
Weiss et al. [27]	—	—	—	—	—	—	—	—	—
Overall	—	—	—	—	—	—	—	—	—

SQCC, squamous cell lung cancer; ADE, lung adenocarcinoma; C, current smokers; N, never smokers; F, former smokers; pStage, pathological stage.
Pathological stage or clinical stage, not specified.