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Table 4 Characteristics of studies on VDR FokI rs2228570 (C > T) variant and polycystic ovarian syndrome (PCOS) susceptibility

From: Association of vitamin D receptor gene variants with polycystic ovary syndrome: a meta-analysis

Author Year Country Ethnicity NOS scores Sample size Genotype in cases Genotype in controls
PCOS Control TT TC CC TT TC CC
Dasgupta [14] 2015 India Asian 7 250 249 8 87 155 9 88 152
Jedrzejuk [15] 2015 Poland Caucasian 7 90 98 11 51 28 25 50 23
Mahmoudi [16] 2015 Iran Asian 8 35 35 2 17 16 1 10 24
Mahmoudi [17] 2009 Iran Asian 8 162 162 12 67 83 7 59 96
Bagheri [23] 2012 Iran Asian 7 46 46 22 20 4 29 15 2
Wehr [20] 2011 Australia Caucasian 7 538 135 82 241 215 22 60 53
Cao [21] 2016 China Asian 7 120 120 10 40 70 10 45 65