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Table 1 Characteristics of studies included in the meta-analysis of apolipoprotein E gene ε2/ε3/ε4 polymorphism and glaucoma *

From: Apolipoprotein E gene ε4ε4 is associated with elevated risk of primary open angle glaucoma in Asians: a meta-analysis

Author/Year [Reference]

Ethnicity

Sample size (Case/control)

Glaucoma type

Number of cases

Number of controls

HWE P-value

ε2

ε3

ε4

ε2

ε3

ε4

Krumbiegel 2010 [11]

Caucasian (German)

801(459/342)

PEXG

79

740

99

51

547

86

0.926

Krumbiegel 2010 [11]

Caucasian (Italian)

323(133/190)

PEXG

21

222

23

23

317

40

0.024

Saglar 2009 [12]

Caucasian

194(75/119)

POAG

13

126

11

10

204

24

0.832

Al-Dabbagh 2009 [13]

Asian

230(100/130)

POAG,PACG

0

181

19

0

249

11

0.969

Jia 2009 [14]

Asian

376(176/200)

POAG

34

278

40

35

329

36

0.897

Yuan 2007 [15]

Asian

162(105/57)

POAG,PACG

48

81

81

18

76

20

<0.0001

Zetterberg 2007 [16]

Caucasian

429(242/187)

POAG

50

376

58

42

289

43

0.923

Hu 2007 [17]

Asian

219(142/77)

POAG

17

229

38

11

129

14

0.409

Tamura 2006 [18]

Asian

105(28/77)

POAG

3

42

11

12

135

7

0.079

Lam 2006 [19]

Asian

700(400/300)

POAG

79

674

47

50

495

55

0.065

Mabuchi 2005 [20]

Asian

489(310/179)

POAG

16

567

37

18

302

38

0.104

Jünemann 2004 [21]

Caucasian

128(96/32)

POAG

19

146

27

9

40

15

0.012

Lake 2004 [22]

Caucasian

504(155/349)

POAG

28

229

53

56

534

108

0.316

Ressiniotis 2004 [23]

Caucasian

212(137/75)

POAG

35

199

40

16

114

20

NA#

Vickers 2002 [24]

Caucasian

193(142/51)

POAG

27

206

51

15

75

12

0.202

  1. *HWE: Hardy-Weinberg equilibrium; PEXG: pseudoexfoliation glaucoma; POAG: primary open angle glaucoma; PACG: primary angle closure glaucoma; NA: not available. #Only allele frequency was extracted from the study.