Table 4 Unadjusted (a) and two-step adjusted (b and c) correlations between the dependent variables: age at onset of obesity, severity of obesity at age 7 and severity of obesity at age 15, and maternal and paternal BMI

From: Associations between severity of obesity in childhood and adolescence, obesity onset and parental BMI: a longitudinal cohort study

 

Age at onset of obesity a

Severity of obesity, age 7

Severity of obesity, age 15

 

β

P

R2

β

P

R2

β

P

R2

(a) Unadjusted

 Maternal BMI

−0.00

0.96

0

0.11

0.10

0.01

0.29

0.0000

0.08

 Paternal BMI

−0.14

0.04

0.01

0.17

0.01

0.03

0.27

0.0001

0.07

(b) Adjusted, 1st step

  

0.01

  

0.02

  

0.14

 Maternal BMI

0.04

0.56

 

0.07

0.29

 

0.23

0.0004

 

 Paternal BMI

−0.14

0.04

 

0.15

0.02

 

0.20

0.001

 

 Gender

−0.00

1.00

 

0.00

0.99

 

0.10

0.10

 

 Parental academic degree

0.07

0.31

 

−0.02

0.82

 

−0.14

0.02

 

(c) Adjusted, 2nd step

     

0.53

  

0.28

 Maternal BMI

—

—

 

0.09

0.05

 

0.17

0.003

 

 Paternal BMI

—

—

 

0.04

0.36

 

0.16

0.01

 

 Gender

—

—

 

−0.02

0.69

 

0.11

0.04

 

 Parental academic degree

—

—

 

0.04

0.43

 

−0.11

0.05

 

 Age at onset of obesity

—

—

 

−0.72

<0.00001

 

0.05

0.60

 

 Severity of obesity, age 7

—

—

 

—

—

 

0.39

<0.00001

 

 Treatment >1 year

—

—

 

—

—

 

−0.26

<0.0001

 
  1. Abbreviation: BMI, body mass index.
  2. R2, adjusted R2, amount of explanation.
  3. a Normalized.
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