Table 4 Associations between the child’s external locus of control as measured at age 8 and fat mass in adolescence

From: The relationship between parental locus of control and adolescent obesity: a longitudinal pre-birth cohort

 

Model A

Model B

Model C

9 years

  MD [95% CI]

0.14 [−0.12, 0.40]

0.05 [−0.22, 0.33]

0.14 [−0.17, 0.45]

  P

0.301

0.708

0.386

  N

5463

5160

3767

11 years

  MD [95% CI]

0.46 [0.09, 0.83]

0.33 [−0.05, 0.71]

0.37 [−0.04, 0.78]

  P

0.015

0.092

0.075

  N

5167

4886

3961

13 years

  MD [95% CI]

1.12 [0.67, 1.57]

0.93 [0.46, 1.39]

0.81 [0.31, 1.31]

  P

<0.0001

<0.0001

0.002

  N

4576

4352

3488

15 years

  MD [95% CI]

1.37 [0.84, 1.89]

1.23 [0.68, 1.77]

1.14 [0.54, 1.74]

  P

<0.0001

<0.0001

<0.0001

  N

3975

3777

3067

17 years

  MD [95% CI]

1.42 [0.77, 2.07]

1.24 [0.57, 1.91]

1.20 [0.47, 1.94]

  P

<0.0001

<0.0001

0.001

  N

3548

3450

2713

  1. The table shows the mean difference [95%CI] (kg) in fat mass for externally compared with internally oriented 8-year olds
  2. Model A allows for sex and ethnic background of the child; model B additionally allows for duration of breast feeding, age started solids and whether the mother smoked at mid-pregnancy; model C is model B plus aspects of the offspring diet at ages 10 (energy, trans-fatty acids and sugar) and activity levels at 11
  3. MD mean difference, CI confidence interval