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Table 5 The risks of prematurity in relation to the genotypes of the VDR variants, and their association with 25(OH) D deficiency in the mothers

From: Association between vitamin D plasma concentrations and VDR gene variants and the risk of premature birth

VDR SNVs

Genotypes

Odds

Prematurity Risk

All mothers (n = 132)

Mothers with 25(OH) D deficiency (n = 47)

OR (CI 95%)

p*

OR (IC 95%)

p**

TaqI/A > G

AA

0.76

Ref.

 

Ref.

 

AG

0.39

0.51 (0.23; 1.16)

0.107

0.56 (0.25; 1.27)

0.165

GG

0.14

0.19 (0.05; 0.72)

0.015

0.19 (0.05; 0.74)

0.016

BsmI/C > T

CC

0.44

Ref.

 

Ref.

 

CT

0.00

***

***

***

***

TT

1.08

2.46 (1.07; 5.65)

0.033

2.36 (1.02 5.47)

0.044

ApaI/C > A

CC

0.16

Ref.

 

Ref.

 

CA

0.43

2.66 (0.91; 7.78)

0.075

3.00 (1.003; 8.99)

0.050

AA

1.17

7.23 (2.14; 24.48)

0.001

7.99 (2.29; 27.84)

0.001

FokI/A > G

AA

0.25

Ref.

 

Ref.

 

AG

0.49

1.95 (0.57; 6.67)

0.290

2.01 (0.58; 7.02)

0.271

GG

0.30

1.85 (0.54; 6.31)

0.329

1.82 (0.53; 6.33)

0.344

  1. SNV Single Nucleotide Variant, OR Odds Ratio, CI Confidence interval. Wild genotype was used as a reference for *Logistic regression
  2. ** Logistic regression adjusted for maternal vitamin D deficiency (≤30 ng/ml). *** Not possible to calculate due to sample size. P < 0.05