Table 5 Results of logistic regression predicting BMI ≥ 30: Unrelated and sibling pair sample, Add Health Study, 1994–2008

Sex

0.991

(0.87, 1.13)

0.897

1.114

(0.84, 1.48)

0.451

Age

1.032

(0.99, 1.08)

0.140

1.021

(0.94, 1.10)

0.613

Breastfeeding

0.854

(0.75, 0.97)

0.018

0.854

(0.64, 1.13)

0.277

Birthweight >2500 g

Reference

Reference

Reference

Reference

Reference

Reference

Birthweight <2500 g

1.073

(0.80, 1.44)

0.635

1.162

(0.81, 1.67)

0.419

Birthweight missing

0.614

(0.37, 1.01)

0.055

0.908

(0.43, 1.93)

0.801

Parent nonsmoker

Reference

Reference

Reference

Reference

Reference

Reference

Parent smoker

1.259

(1.04, 1.53)

0.021

0.909

(0.62, 1.33)

0.623

Parent smoking missing

0.863

(0.72, 1.03)

0.106

0.874

(0.61, 1.25)

0.456

Non-Hispanic African American

Reference

Reference

Reference

Reference

Reference

Reference

Non-Hispanic White

0.665

(0.56, 0.79)

<0.0001

0.439

(0.14, 1.41)

0.168

Non-Hispanic Asian/Native American

0.528

(0.38, 0.73)

<0.0001

0.682

(0.08, 5.83)

0.727

Hispanic

1.055

(0.85, 1.31)

0.621

0.738

(0.24, 2.27)

0.596

Behavioral risk score 4_1

0.794

(0.73, 0.86)

<0.0001

1.244

(1.06, 1.47)

0.009

Behavioral risk score 4_2

0.834

(0.75, 0.93)

0.002

0.976

(0.83, 1.15)

0.779

Behavioral risk score 4_3

0.867

(0.77, 0.98)

0.018

0.904

(0.75, 1.09)

0.283

Parent socioeconomic status

0.960

(0.94, 0.98)

0.002

0.652

(0.49, 0.86)

0.003

Maternal obesity

2.539

(2.17, 2.97)

<0.0001

2.794

(2.08, 3.75)

<0.0001

Genetic risk score

–

–

–

1.092

(1.05, 1.14)

<0.0001