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Table 4 Regression results for models constructed from sibling pair sample, n = 1179, Add Health Study 1994–2008

From: Breastfeeding is associated with waist-to-height ratio in young adults

 

Waist-to-height ratio outcome*

Body mass index outcome**

b

SE

P value

b

SE

P value

Intercept

0.392

0.063

<0.0001

20.161

4.640

<0.0001

Sex

0.037

0.006

<0.0001

0.301

0.477

0.528

Age

0.000

0.002

0.838

−0.063

0.132

0.634

Breastfeeding

−0.020

0.006

0.002

−1.049

0.473

0.027

Birthweight >2500 g

Reference

Reference

Reference

Reference

Reference

Reference

Birthweight <2500 g

0.001

0.008

0.927

−0.186

0.629

0.768

Birthweight Missing

0.006

0.017

0.726

0.384

1.261

0.761

Parent nonsmoker

Reference

Reference

Reference

Reference

Reference

Reference

Parent smoker

0.008

0.009

0.334

0.322

0.648

0.619

Parent smoking missing

0.007

0.008

0.375

0.686

0.598

0.251

Non-Hispanic African American

Reference

Reference

Reference

Reference

Reference

Reference

Non-Hispanic White

−0.014

0.027

0.604

−1.634

2.004

0.415

Non-Hispanic Asian/Native American

0.025

0.047

0.589

3.625

3.452

0.294

Hispanic

−0.023

0.026

0.382

−1.695

1.918

0.377

Behavioral risk score 4_1

0.016

0.004

<0.0001

0.757

0.265

0.004

Behavioral risk score 4_2

−0.001

0.004

0.787

−0.206

0.282

0.466

Behavioral risk score 4_3

−0.002

0.004

0.564

0.123

0.303

0.685

Parent socioeconomic status

−0.010

0.006

0.100

−0.839

0.462

0.070

Maternal obesity

0.047

0.007

<0.0001

3.932

0.508

<0.0001

Genetic risk score

0.005

0.001

<0.0001

0.402

0.065

<0.0001

Ancestry principal component 1

0.273

0.544

0.617

10.394

40.325

0.797

Ancestry principal component 2

−0.392

0.348

0.261

−4.349

25.792

0.866

Ancestry principal component 3

0.769

0.215

<0.001

57.713

15.944

<0.001

Ancestry principal component 4

−0.034

0.150

0.822

0.989

11.076

0.929

Ancestry principal component 5

0.366

0.187

0.0505

32.468

13.836

0.0191

  1. b (Coefficient) SE (Standard Error)
  2. * R-Squared = 0.18
  3. ** R-Squared = 0.14