Table 8 Interactions between (TG, FPG, HbA1c) and Insulin Resistance traits (HOMA-IR, HOMA-β, C-peptide, HOMA-S) with respect to genotypes at the risk variants.

From: Genome-wide association study identifies novel risk variants from RPS6KA1, CADPS, VARS, and DHX58 for fasting plasma glucose in Arab population

Interaction

Effect Size

Std. Error

P-value@

Recessive Marker rs1002487-C/RPS6KA1

Model: TG~rs1002487* insulin resistance traits

   CC: HOMA-IR

11.78

4.12

0.0047

   TC: HOMA-IR

12.95

7.17

0.072

   CC: HOMA-β

−4.31

0.69

1.5E-09

   TC: HOMA-β

0.078

0.17

0.655

   CC: C-peptide

1959.1

292.95

1.25E-10

   TC: C-peptide

26.11

18.32

0.152

   CC: HOMA-S

−2.633

0.418

1.16E-09

   TC: HOMA-S

−0.299

0.145

0.0397

Model: FPG~rs1002487* insulin resistance traits

   CC: HOMA-IR

0.209

0.308

0.497

   TC: HOMA-IR

−0.394

0.537

0.463

   CC: HOMA-β

−0.247

0.043

3.62E-08

   TC: HOMA-β

0.0013

0.011

0.900

   CC: C-peptide

122.2

5.046

8.19E-07

   TC: C-peptide

0.682

1.515

0.653

   CC: HOMA-S

−0.162

0.032

1.25E-06

   TC: HOMA-S

−0.0005

0.011

0.995

Model: HbA1C~rs1002487* insulin resistance traits

   CC: HOMA-IR

0.341

0.201

0.090

   CT: HOMA-IR

−0.624

0.349

0.075

   CC: HOMA-β

−0.138

0.029

3.04E-06

   CT: HOMA-β

−0.0008

0.007

0.257

   CC: C-peptide

66.96

14.77

8.73E-06

   CT: C-peptide

−0.886

0.924

0.338

   CC: HOMA-S

−0.092

0.02

1.35E-05

   CT: HOMA-S

0.0037

0.007

0.606

Additive Marker rs707927-G/[VARS, VWA7]

Model: TG~rs707927* insulin resistance trait

   AG: HOMA-IR

9.845

3.351

0.0035

   GG: HOMA-IR

17.318

78.544

0.825

   AG: HOMA-β

−0.307

0.165

0.064

   GG: HOMA-β

−0.435

0.817

0.595

   AG: C-peptide

8.396

17.182

0.625

   GG: C-peptide

−139.584

258.03

0.588

   AG: HOMA-S

−0.313

0.116

0.007

   GG: HOMA-S

0.009

0.521

0.986

Model: FPG~rs707927* insulin resistance trait

   AG: HOMA-IR

0.239

0.233

0.306

   GG: HOMA-IR

24.48

5.470

1.11E-05

   AG: HOMA-β

−0.034

0.009

0.00032

   GG: HOMA-β

−0.194

0.047

5.17E-05

   AG: C-peptide

0.100

1.272

0.937

   GG: C-peptide

−77.43

19.10

6.59E-05

   AG: HOMA-S

−0.020

0.008

0.012

   GG: HOMA-S

−0.140

0.037

0.00019

Model: HbA1C~rs707927* insulin resistance trait

   AG: HOMA-IR

0.482

0.159

0.0024

   GG: HOMA-IR

7.012

3.736

0.0615

   AG: HOMA-β

−0.021

0.006

0.0013

   GG: HOMA-β

−0.048

0.032

0.127

   AG: C-peptide

0.827

0.788

0.295

   GG: C-peptide

−22.07

11.84

0.063

   AG: HOMA-S

−0.018

0.005

0.0005

   GG: HOMA-S

−0.043

0.023

0.0686

Recessive Marker rs487321-A/CADPS

Model: TG~rs487321* insulin resistance trait

   GA: HOMA-IR

−17.71

6.001

0.003

   AA: HOMA-IR

NA

NA

NA

   GA: HOMA-β

0.091

0.186

0.623

   AA: HOMA-β

NA

NA

NA

   GA: C-peptide

−0.661

18.710

0.972

   AA: C-peptide

NA

NA

NA

   GA: HOMA-S

0.109

0.150

0.468

   AA: HOMA-S

NA

NA

NA

Model: FPG~rs487321* insulin resistance trait

   GA: HOMA-IR

−0.316

0.446

0.476

   AA: HOMA-IR

NA

NA

NA

   GA: HOMA-β

−0.024

0.011

0.032

   AA: HOMA-β

NA

NA

NA

   GA: C-peptide

−1.55

1.464

0.288

   AA: C-peptide

NA

NA

NA

   GA: HOMA-S

0.0006

0.011

0.952

   AA: HOMA-S

NA

NA

NA

Model: HbA1C~rs487321* insulin resistance trait

   GA: HOMA-IR

0.038

0.294

0.896

   AA: HOMA-IR

NA

NA

NA

   GA: HOMA-β

−0.007

0.007

0.330

   AA: HOMA-β

NA

NA

NA

   GA: C-peptide

0.088

0.881

0.920

   AA: C-peptide

NA

NA

NA

   GA: HOMA-S

−0.0041

0.007

0.5610

   AA: HOMA-S

NA

NA

NA

Additive Marker rs12600570-T/DHX58

Model: TG~rs12600570* insulin resistance trait

   CT: HOMA-IR

−7.86

5.063

0.122

   TT: HOMA-IR

59.60

17.11

0.00057

   CT: HOMA-β

0.116

0.128

0.3654

   TT: HOMA-β

0.667

0.490

0.1742

   CT: C-peptide

3.11

17.42

0.858

   TT: C-peptide

178.71

44.06

6.50E-05

   CT: HOMA-S

0.155

0.093

0.095

   TT: HOMA-S

−0.971

0.393

0.014

Model: FPG~rs12600570* insulin resistance trait

   CT: HOMA-IR

1.005

0.375

0.0078

   TT: HOMA-IR

2.797

1.268

0.0282

   CT: HOMA-β

−0.018

0.0076

0.0158

   TT: HOMA-β

−0.135

0.0291

5.09E-06

   CT: C-peptide

−0.781

1.391

0.574

   TT: C-peptide

−10.22

3.517

0.0039

   CT: HOMA-S

−0.004

0.007

-0.660

   TT: HOMA-S

−0.081

0.029

-2.712

Model: HbA1C~rs12600570* insulin resistance trait

   CT: HOMA-IR

0.213

0.254

0.402

   TT: HOMA-IR

0.153

0.859

0.858

   CT: HOMA-β

0.002

0.0052

0.601

   TT: HOMA-β

−0.012

0.0196

0.531

   CT: C-peptide

−0.363

0.848

0.668

   TT: C-peptide

−1.861

2.144

0.386

   CT: HOMA-S

0.0015

0.004

0.720

   TT: HOMA-S

−0.0176

0.0188

0.350

  1. @Multiple testing significance threshold for p-value is 0.003.
  2. All the interaction models were corrected for age and gender.