Table 13.

Main data of all studies included in the meta-analysis for the -511C/T polymorphism in IL-1β gene

				Case			Control
Study	Population location	Year	Age	GG	GA	AA	GG	GA	AA	OR	95%CI
Hsieh, C C[78]	Taiwan	2004	8.74 ± 4.09	69	93	40	48	70	26	0.96	0.61-1.52
Wu, Z F[79]	Jiangxi	2007	11-68	16	36	24	26	38	12	1.95	0.94-4.03
Zhao, X F[80]	Yunnan	2006	5.9(3-14)	51	4	0	30	5	0	0.47	0.12-1.89