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Table 1 Distribution of Samples in Published PheWAS. In this table, we highlight the range of cases and controls for PheWAS on binary phenotypes and range of sample sizes for the quantitative phenotypes used in few PheWAS analyses in literature

From: A simulation study investigating power estimates in phenome-wide association studies

Study

Min/Max Case Counts Range

Min/Max Control Count Range

Binary Phenotypes (EHR-based ICD-9 codes)

Denny et al. [23]

25/8185

4206/13746

Hebbring et al. [9]

11/3450

NA

Namjou et al. [24]

23/1131

1840/3609

Simonti et al. [25]

20/8128

794/13258

Shameer et al. [26]

22/6082

NA

Karnes et al. [11]

40/12197

9354/28737

Quantitative Phenotypes

Study

Sample Size Range

Karaca et al. [27]

323–973

Hall et al. [14]

258–6363

Moore and Verma et al. [16]

1175–3269

Pendergrass et al. [13]

48–1331