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Table 5 Main characteristics of individual studies included in the meta-analysis on ABCB1 C3435T polymorphism and breast cancer risk

From: Association between ABCB1 C3435T polymorphism and breast cancer risk: a Moroccan case-control study and meta-analysis

Study

Country

Ethnicity

Sample size (N Cases/ N controls)

Genotyping method

Cases

Controls

HWE*

Genotypes (N)

Alleles (N)

Genotypes (N)

Alleles (N)

CC

CT

TT

C

T

CC

CT

TT

C

T

Tazzite et al. 2016 (current paper)

Morocco

North Africa

60/68

PCR-RFLP

30

20

10

80

40

28

33

7

89

47

0.55

Abuhaliema et al. 2016 [26]

Jordan

Middle East

150/150

PCR-RFLP

68

62

20

198

102

40

65

45

145

155

0.11

Ghafouri et al. 2015

Iran

Caucasian

100/200

PCR-RFLP

75

16

9

166

34

141

50

9

332

68

0.11

Gutierrez-Rubio et al. 2015 [24]

Mexico

Mixed

248/152

PCR-RFLP

82

133

33

297

199

56

72

24

184

120

0.91

Macías-Gómez et al. 2014 [23]

Mexico

Mixed

64/183

PCR-RFLP

15

41

8

71

57

37

103

43

177

189

0.09

Fawzy et al. 2014 [22]

Egypt

North Africa

190/190

ARMS-PCR

60

92

38

212

168

76

94

20

246

134

0.25

Rubis et al. 2012 [21]

Poland

Caucasian

209/205

PCR-RFLP

48

96

65

192

226

52

103

50

207

203

0.94

Wu et al. 2012 [20]

China

Asian

1,173/1,244

PCR-RFLP

388

565

220

1,341

1,005

440

624

180

1,504

984

0.08

Abbas et al. 2010 [19]

Germany

Caucasian

3,148/5,486

MALDI-TOF MS

703

1,543

902

2,949

3,347

1,228

2,736

1,522

5,192

5,780

0.98

Taheri et al. 2010 [18]

Iran

Caucasian

54/50

PCR-RFLP

10

30

14

50

58

10

27

13

47

53

0.55

Cizmarikova et al. 2010 [17]

Slovak

Caucasian

221/113

PCR-RFLP

46

108

67

200

242

35

54

24

124

102

0.71

Tatari et al. 2009 [16]

Iran

Caucasian

106/77

PCR-RFLP

16

57

33

89

123

12

45

20

69

85

0.11

George et al. 2009 [15]

India

Asian

86/68

PCR-RFLP

8

39

39

55

117

15

32

21

62

74

0.67

Henriquez-Hernandez et al. 2009 [14]

Spain

Caucasian

135/301

PCR-RFLP

35

70

30

140

130

85

162

54

332

270

0.13

Turgut et al. 2007 [13]

Turkey

Caucasian

57/50

PCR-RFLP

7

33

17

47

67

18

23

9

59

41

0.73

Nordgard et al. 2007 [12]

Norway

Caucasian

93/109

PCR-RFLP

9

51

33

69

117

17

52

40

86

132

0.99

  1. N number, CC homozygous wild-type, CT heterozygous, TT homozygous mutant, PCR-RFLP Polymerase chain reaction-restriction fragment length polymorphism, ARMS-PCR Amplification refractory mutation system-polymerase chain reaction, MALDI-TOF MS Matrix assisted laser desorption/ionization time-of-flight mass spectrometry, HWE Hardy Weinberg equilibrium; *P value in the control group