Skip to main content

Table 4 Comparison of odd ratio means among the diplotypes that share the same allele of rs16969968 (A) GG and (B) AG, along with predicted effects on CHRNA5, CHRNA3, CHRNB4 mRNA expression

From: Combined genetic influence of the nicotinic receptor gene cluster CHRNA5/A3/B4 on nicotine dependence

Diplotype

Percent

OR

CHRNA5

CHRNA3

CHRNB4

A. Diplotype with rs16969968 = GG

 AGGC-GGGG

2

0.82

medium

low

medium

 AGAC-GGGG

8

1.00

medium

medium

medium

 GGGC-GGGG

2

1.04

low

low

medium

 GGGG-GGGG

2

1.07

low

low

low

 AGAC-GGGC

4

1.08

medium

medium

high

 AGAC-AGGC*

5

1.18

high

medium

high

 AGAC-AGAC*#

8

1.63

high

high

high

B. Diplotype with rs16969968 = AG

 AGAC-GAGG

5

0.86

medium

medium

medium

 GAGC-GGGC

4

1.05

low

low

high

 GAGC-GGGG

8

1.32

low

low

medium

 AGAC-GAGC+

18

1.62

medium

medium

high

 AGGG-GAGC+

3

1.62

medium

high

medium

 AGGC-GAGC+

5

1.68

medium

low

high

  1. Expression level was defined as follows; homozygous minor alleles of the enhancer (rs880395 and rs1948) (or repressor, rs4887074) of each gene = ‘high’ (or ‘low’ with repressor), heterozygous genotype = ‘medium’; homozygous minor of enhancer (or repressor) = ‘low’ expression (or ‘high’ when a repressor)
  2. *p < .05, Tukey test, pairwise comparison with AGGC-GGGG
  3. #p < .05, Tukey test, pairwise comparison with AGAC-GGGG
  4. +p < .05, Tukey test, pairwise comparison with AGAC-GAGG