Table 5 Dose–response associations of prenatal food protective index with cord blood total IgE elevation modified by genetic polymorphisms.

From: Prenatal antioxidant-enriched and pro-oxidant-contained food, IL4 and IL13 pathway genes, and cord blood IgE

PFPI#,a

Total

IL13 rs1800925

IL13 rs20541

IL13 rs848

(n = 1107)

aOR (95% CI)

CC

(n = 797)

aOR (95% CI)

CT or TT

(n = 310)

aOR (95% CI)

GG

(n = 496)

aOR (95% CI)

GA or AA

(n = 611)

aOR (95% CI)

CC

(n = 501)

aOR (95% CI)

CA or AA

(n = 605)

aOR (95% CI)

None

1

1

1

1

1

1

1

1

0.58 (0.32–1.05)

0.71 (0.33–1.54)

0.40 (0.15–1.09)

0.42 (0.15–1.16)

0.77 (0.36–1.62)

0.47 (0.17–1.29)

0.71 (0.34–1.52)

2

0.43 (0.24–0.78)**

0.55 (0.26–1.19)

0.31 (0.11–0.82)*

0.46 (0.17–1.22)

0.44 (0.21–0.92)*

0.47 (0.18–1.26)

0.44 (0.21–0.92)*

3

0.37 (0.19–0.73)**

0.53 (0.23–1.24)

0.21 (0.07–0.66)**

0.67 (0.23–1.94)

0.23 (0.09–0.57)**

0.63 (0.22–1.82)

0.27 (0.11–0.65)**

P for trend

0.002

0.09

0.009

0.73

 < 0.0001

0.91

0.0002

P for interaction

  

0.15

 

0.004

 

0.03

PFPI#,a

STAT6 rs324011

IL4 rs2243250

   

CC

(n = 628)

aOR (95% CI)

CT or TT

(n = 479)

aOR (95% CI)

TT

(n = 724)

aOR (95% CI)

TC or CC

(n = 381)

aOR (95% CI)

None

1

1

1

1

   

1

0.52 (0.24–1.15)

0.66 (0.26–1.69)

0.56 (0.26–1.20)

0.53 (0.20–1.40)

   

2

0.39 (0.18–0.85)*

0.48 (0.19–1.21)

0.42 (0.20–0.88)*

0.38 (0.14–1.01)

   

3

0.32 (0.13–0.75)**

0.43 (0.15–1.27)

0.41 (0.18–0.95)*

0.28 (0.09–0.87)*

   

P for trend

0.007

0.07

0.03

0.02

   

P for interaction

 

0.77

 

0.62

   
  1. PFPI, prenatal food protective index; aOR, adjusted odds ratio; 95% CI, 95% confidence interval.
  2. #PFPI includes any fairly lean fish, daily fruit, and absence of any canned fish.
  3. aAdjusted for neonatal sex, gestational age, birth body weight, maternal age, parental education, family history of atopic diseases, environmental tobacco smoke, and perception of mildewy odour.
  4. *P < 0.05, **P < 0.01, P < .05 after FDR correction, P < .01 after FDR correction.