RETRACTED ARTICLE: Meta-analysis of the associations between TNF-α or IL-6 gene polymorphisms and susceptibility to lung cancer

Table 2 Distribution of genotype and allele for TNF-α-308G/A and IL-6-174G/C

Locus	Research	Number of case			Number of control			Number of case		Number of control
		GG	GA	AA	GG	GA	AA	G	A	G	A
TNF-α 308G/A	Helmig et al.	290	79	5	136	38	3	659	89	310	44
	Flego et al.	169	52	9	171	53	6	390	70	395	65
	Stankovic et al.	57	13	0	71	28	3	127	13	170	34
	Colakogullari et al.	38	5	0	37	16	6	81	5	90	28
	Seifart et al.	29	11	0	171	67	4	69	11	409	75
	Shih et al.	110	75	15	169	34	2	295	105	372	38
		GG	GC	CC	GG	GC	CC	G	C	G	C
IL-6 174G/C	Colakogullari et al.	10	29	5	27	22	9	49	39	76	40
	Vogel et al.	105	202	96	204	361	179	412	394	769	719
	Seifart et al.	19	16	4	90	107	46	54	24	287	199
	Campa et al.	64	111	68	55	105	47	239	247	215	199