Table 3 Estimated Number of Outliers Statistics and Non-replicable SNPs in the GSCAN Dataset.

From: Model-based assessment of replicability for genome-wide association meta-analysis

Phenotype

MAF range

Number of significant SNPs analyzed (P < 1 × 10−5)

Total expected # of outlier statisticsa

Total expected # of Non-replicable SNPsb

Average of average # of outliers per studyc

Maximum # outliers at each SNP

Median # of outliers at each SNP

SmkInit

0 < MAF < 0.001

306

62.83

64.85

0.026

2.151

0.007

SmkInit

0.001 < MAF < 0.01

87

22.9

22.73

0.027

1.027

0.015

SmkInit

0.01 < MAF < 0.5

301

6.09

4.63

0.027

2.173

0

SmkCes

0 < MAF < 0.001

424

26.09

22.62

0.046

1.349

0.043

SmkCes

0.001 < MAF < 0.01

100

5.01

3.93

0.043

0.276

0.04

SmkCes

0.01 < MAF < 0.5

201

7.09

4.81

0.045

0.252

0.025

DrnkWk

0 < MAF < 0.001

229

12.72

17.42

0.041

0.874

0.013

DrnkWk

0.001 < MAF < 0.01

74

0.81

0.71

0.042

0.051

0.01

DrnkWk

0.01 < MAF < 0.5

151

0.91

0.73

0.042

0.04

0.003

CigDay

0 < MAF < 0.001

203

16.2

19.86

0.042

0.817

0.025

CigDay

0.001 < MAF < 0.01

61

1.12

0.96

0.038

0.104

0.012

CigDay

0.01 < MAF < 0.5

137

1.27

0.99

0.04

0.1

0.002

  1. Using estimated hyperparameters from MAMBA, we estimated the number of non-replicable SNPs and outlier statistics in each study as a way to quantify the extent of outlier statistics in real data.
  2. aThe total expected number of outlier statistics is calculated by \(\mathop {\sum}\nolimits_j {[ {\widehat {\Pr }\left( {R_j = 0} \right)\mathop {\sum}\nolimits_k {\widehat {\Pr }\left( {O_{jk} = 1} \right)} } ]} \).
  3. bThe total expected number of non-replicable SNPs is calculated by \(\mathop {\sum}\nolimits_j {\widehat {\Pr }\left( {R_j = 0} \right)} \).
  4. cThe average number of outliers per study is calculated by the total number of outliers divided by the number of studies that contributed to the meta-analysis.