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Table 5 Characteristics of studies on VDR TaqI rs757343 (G > A) 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

AA

AG

GG

AA

AG

GG

Bagheri [23]

2012

Iran

Asian

7

181

181

7

51

123

6

48

127

Ranjzad [25]

2012

Iran

Asian

8

35

35

1

6

28

0

8

27

Zadeh-Vakili [26]

2013

Iran

Asian

8

221

260

6

58

157

8

66

186