Table 5 Characteristics of the different study cohorts used in the study.

From: A functional IFN-λ4-generating DNA polymorphism could protect older asthmatic women from aeroallergen sensitization and associate with clinical features of asthma

Cohort

Type

Genotype* tested

MAF

Phenotype data available

Total no. of participants

Ref.

Remarks

Inter 99

Population-based

rs12979860 (g)

0.34

Atopy Asthma

5341

19

Atopy determined by serum specific IgE; self-reported doctor-diagnosed asthma

Health 2006

Population-based

rs12979860 (g)

0.34

Atopy Asthma

3134

20

 

COPSAC

Case-control (hospital-based; parents of asthmatic children)

rs12979860 (g)

0.30

Atopy Asthma

551

21

All participants below 50 yr of age; Atopy determined by serum specific IgE

GERA

Population-based

rs12979860 (i); rs8099917 (i)

0.32; 0.19

Allergic rhinitis, Asthma

56637

18

Average age 63 yr (range18 to over 100 yr)

Polish

Hospital-based Case-control

rs368234815 (g)

0.34

Atopy, asthma

437

Atopy determined by SPT; asthma treated and monitored

  1. *g-genotyped; i-imputed; MAF-minor allele frequency.