Table 3 Results of transmission disequilibrium test (TDT) analyses of the SNPs in case-parent triad families.

From: The Gene Variants of Maternal/Fetal Renin-Angiotensin System in Preeclampsia: A Hybrid Case-Parent/Mother-Control Study

SNP

counts of trans vs. non-trans alleles

TDT

P

transmitted allele

non-transmitted allele

A1

A2

ACE I/D

A1

160

139

  

A2

107

94

4.16

0.041

ACE G2350A

A1

201

124

  

A2

93

50

4.43

0.035

AGT M235T

A1

265

84

  

A2

108

41

3.00

0.083

AGT T174M

A1

395

40

  

A2

34

7

0.49

0.486

AT1R A1166C

A1

410

38

  

A2

20

2

5.59

0.018

  1. A1 and A2 represent the two alleles of each SNP.