Association between polymorphisms of OGG1, EPHA2 and age-related cataract risk: a meta-analysis

BMC Ophthalmology

Table 1 Main characteristics of included studies in this meta-analysis

First author	Year	Country	Ethnicity	Mean age		Sample size		Genotype methods
First author	Year	Country	Ethnicity	ARCs	Controls	ARCs	Controls	Genotype methods
Shiels A [29]	2008	USA	European	75.7 ± 7.9	74.5 ± 7.6	213	104	PCR
Sundaresan P [30]	2012	India	Asian	–	–	4198	3220	PCR
Zhang Y [31]	2012	China	Asian	67.17 ± 6.92	65.77 ± 6.49	415	386	PCR-RFLP
Jiang SQ [32]	2013	China	Asian	70.9 ± 8.2	60.2 ± 5.7	504	244	PCR
Celojevic D [33]	2014	Sweden	European	72 ± 8.7	66 ± 6.9	491	185	PCR
Gharib AF [34]	2014	Egypt	African	60.33 ± 6.22	67.83 ± 5.54	150	50	PCR

ARC age-related cataract, − not available, PCR-RFLP polymerase chain reaction-restriction fragment length polymorphism

ISSN: 1471-2415