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Table 1 GWAS summary statistics: source and description

From: Mendelian randomization analysis suggests no causal influence of gastroesophageal reflux disease on the susceptibility and prognosis of idiopathic pulmonary fibrosis

Variables

Data source

PMID

N cases

Sample size

Ethnicity

GWAS of gastroesophageal reflux disease

GERD (discovery cohort)

Ong et al. (2022)

34,187,846

129,080

602,604

European

GERD (replication cohort)

FinnGen-R9

36,653,562

26,184

346,571

European

GWAS of idiopathic pulmonary fibrosis

FVC

Allen et al. (2023)

35,985,358

–

1048

European

DLCO

Allen et al. (2023)

35,985,358

–

729

European

TFS

Oldham et al. (2023)

36,780,644

–

1481

European

Susceptibility (discovery cohort)

Allen et al. (2022)

35,688,625

4125

24,589

European

Susceptibility (replication cohort)

FinnGen-R9

36,653,562

2018

375,082

European

GWAS of smoking

Smoking initiation

Liu M et al. (2019)

30643251

1,232,091

–

European

  1. Abbreviations: GWAS genome-wide association studies, GERD gastroesophageal reflux disease, FVC forced vital capacity, DLco diffusing capacity of the lungs for carbon monoxide, TFS transplantation-free survival