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Table 2 Significant mediation (FDR < 0.05) between family history as exposure and MRS, mediated by aeroallergen sensitization measured (H2)

From: DNA methylation and aeroallergen sensitization: The chicken or the egg?

Outcome

Indirect effect

[95% CI]

Direct effect

[95% CI]

Total effect

[95% CI]

Prop.Med

[95% CI]

(A) Sensitization at 6 and DNAm measured at 10 years

(ii) Family history of allergic disease (both parents allergic)

Chen2017

(IgE)

0.081

[0.020; 0.160]

0.107

[− 0.122; 0.326]

0.188

[− 0.042; 0.425]

0.397

[− 2.116; 4.516]

Everson2015

(Atopy)

0.075

[0.016; 0.151]

0.136

[− 0.096; 0.356]

0.211

[− 0.020; 0.447]

0.337

[− 1.562; 2.894]

Peng2019

(Aeroallergen)

0.059

[0.009; 0.123]

0.012

[− 0.202; 0.216]

0.071

[− 0.140; 0.289]

0.355

[− 8.136; 5.016]

Reese2019

(Asthma)

0.073

[0.017; 0.145]

0.064

[− 0.149; 0.268]

0.137

[− 0.077; 0.357]

0.441

[− 3.563; 4.141]

Xu2021

(Allergy)

0.060

[0.014; 0.119]

− 0.008

[− 0.179; 0.154]

0.052

[− 0.119; 0.227]

0.463

[− 7.445; 7.536]

Zhang2019

(Atopy)

0.076

[0.019; 0.148]

0.023

[− 0.179; 0.216]

0.099

[− 0.105; 0.307]

0.496

[− 6.537; 5.902]

  1. No significant associations were found for (i) maternal smoking or (iii) PRS for any allergies