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Table 1 Sources and characteristics of GWAS summary data in the study

From: Genetic association of telomere length, obesity and tobacoo smoking with idiopathic pulmonary fibrosis risk

Phenotype

Data source

Sample size

Characteristics

of subjects

Unit

of data

Inclusion criteria

of SNPs

No. of

SNPs

Telomere length

Codd et al. 2021

PMID: 34,611,362

472,174

European

Males and Females

Aged 40-69

SD

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

96

Heavy smoking

Liu et al. 2019

PMID: 30,643,251

GSCAN a

337,334

European

Males and Females

Any age

SD

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

19

Smoking initiation

Liu et al. 2019

PMID: 30,643,251

GSCAN

1,232,091

European

Males and Females

Any age

Log odds

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

77

Age of smoking

initiation

Liu et al. 2019

PMID: 30,643,251

GSCAN

341,427

European

Males and Females

Any age

SD

P < 5 × 10-6;

r2=0.001, kb=1 M;

F-statistic>10

20

Smoking cessation

Liu et al. 2019

PMID: 30,643,251

GSCAN

547,219

European

Males and Females

Any age

Log odds

P < 5 × 10-6;

r2=0.001, kb=1 M;

F-statistic>10

19

Maternal smoking

Ben Elsworth 2018

ID: ukb-b-17,685

MRC-IEU

397,732

European

Males and Females

Any age

SD

P < 5 × 10-6;

r2=0.001, kb=1 M;

F-statistic>10

50

Heavy drinking

Liu et al. 2019

PMID: 30,643,251

GSCAN

941,280

European

Males and Females

Any age

SD

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

29

Body mass index

Yengo et al. 2018

PMID: 30,124,842

GIANT

681,275

European

Males and Females

Any age

SD

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

443

Body fat percentage

Ben Elsworth 2018

ID: ukb-b-8909

MRC-IEU

454,633

European

Males and Females

Any age

SD

P < 5 × 10-8;

r2=0.001, kb=1 M;

F-statistic>10

315

IPF

Kurki et al. 2022

FinnGen

340,596

European

Males and Females

Mean age: 69.80

SD

NA

NA

  1. a GSCAN = GWAS and Sequencing Consortium of Alcohol and Nicotine use; GIANT = Genetic Investigation of ANthropometric Traits; MRC-IEU = MRC Integrative Epidemiology Unit; IPF = Idiopathic pulmonary fibrosis; SD = Standard deviation