Table 3 Summary statistics of meta-analyses.

From: Pharmacogenomics of Clozapine-induced agranulocytosis: a systematic review and meta-analysis

Authors

Allele/Haplotype

CIA + 

CIA−

Control + 

Control−

Sensitivity

Specificity

NPVa

PPVa

NNG

OR [95% CI]

 | Z | 

I2

p value

pb,a

Dettling 2001, Turbay 1997

HLA-DRB1*04:02

14

40

8

123

26%

94%

99.3%

3.8%

3

5.89 [2.20, 15.80]

3.5

0%

4.00E–04

0.03

Legge 2016, Yunis 1995, van der Weide 2017, Athanasiou 2011

HLA-DQB1*05:02

33

178

9

521

16%

98%

99.2%

7.8%

2

7.12 [1.91, 26.51]

2.9

53%

3.00E–03

0.22

Theodoropoulou 1997, Yunis 1995

HLA-DR2, -DQ1

15

9

18

41

63%

69%

99.5%

1.8%

4

5.40 [1.58, 18.43]

2.7

0%

0.01

0.511

Dettling 2001, Yunis 1995

HLA-DRB5*02

13

59

2

107

18%

98%

99.2%

8.3%

2

6.44 [1.57, 26.39]

2.6

0%

0.01

0.73

Dettling 2001, Yunis 1995

HLA-DRB1*16:01

13

59

5

104

18%

95%

99.2%

3.5%

3

3.62 [1.15, 11.45]

2.2

0%

0.03

1

Yunis 1995, Valevski 1998, Dettling 2001

HLA-B38

27

29

22

137

48%

86%

99.5%

3.1%

3

10.01 [1.13, 88.55]

2.1

82%

0.04

1

Ostrousky 2003, van der Weide 2017

NQO2 1541 G > A

40

9

154

167

82%

52%

99.7%

1.5%

7

7.16 [0.52, 98.34]

1.5

70%

0.14

1

Dettling 2001, Turbay 1997

HLA-DQB1*03:02

16

38

20

111

30%

85%

99.2%

1.8%

6

2.31 [0.53, 10.09]

1.1

71%

0.26

1

Mosyagin 2004, van der Weide 2017

CYBA 640 A > G

78

31

246

70

72%

22%

98.8%

0.8%

−16

0.70 [0.36, 1.38]

1.0

27%

0.31

1

Lahdelma 2001, Yunis 1995

HLA-B7

10

32

5

33

24%

87%

99.2%

1.6%

6

2.17 [0.14, 34.50]

0.6

75%

0.58

1

Dettling 2001, Yunis 1995

HLA-DRB4

20

26

53

78

43%

60%

99.1%

1.0%

42

1.27 [0.35, 4.55]

0.4

69%

0.72

1

Dettling 2001, Lahdelma 2001

HLA-B35

10

42

19

87

19%

82%

99.1%

1.0%

52

1.08 [0.45, 2.57]

0.2

0%

0.87

1

Mosyagin 2004, van der Weide 2017

MPO −463 G > A

42

70

125

193

38%

61%

99.1%

0.9%

−69

1.03 [0.63, 1.68]

0.1

0%

0.92

1

  1. CIA clozapine-induced agranulocytosis, CIA+ number of variant positive CIA subjects, CIA− number of variant negative CIA subjects, Control+ number of variant positive control subjects, Control− number of variant negative control subjects, NNG number needed to genotype, NPV negative predictive value, OR odds ratio, PPV positive predictive value.
  2. aNPV and PPV were corrected for the prevalence of CIA in the US.
  3. bBonferroni correction (m = 73) was applied based on the number of alleles/haplotypes analyzed in this review.