| |
Fast food consumption (frequency/week)
|
Screen time duration (hours/week)
|
Sports club duration (hours/week)
|
|---|
|
Model
|
Outcome: child’s behavior
|
N
|
Explanatory variables
|
β
|
95% CI
|
β
|
95% CI
|
β
|
95% CI
|
|
1
|
All children
|
2694
|
Peer’s behavior
|
0.89
|
0.85, 0.94
|
0.51
|
0.42, 0.61
|
0.54
|
0.45, 0.64
|
|
Sibling’s behavior
|
0.14
|
0.11, 0.17
|
0.46
|
0.43, 0.49
|
0.34
|
0.31, 0.37
|
|
1a
|
Boys
|
1387
|
Peer’s behavior
|
0.84
|
0.77, 0.91
|
0.53
|
0.40, 0.67
|
0.53
|
0.39, 0.68
|
|
Sibling’s behavior
|
0.12
|
0.08, 0.16
|
0.47
|
0.42, 0.52
|
0.33
|
0.28, 0.37
|
|
1b
|
Girls
|
1307
|
Peer’s behavior
|
0.94
|
0.88, 1.01
|
0.31
|
0.17, 0.44
|
0.45
|
0.31, 0.59
|
|
Sibling’s behavior
|
0.17
|
0.13, 0.22
|
0.48
|
0.44, 0.52
|
0.36
|
0.31, 0.40
|
|
1c
|
Children with a same-sex sibling
|
1363
|
Peer’s behavior
|
0.92
|
0.86, 0.98
|
0.49
|
0.37, 0.62
|
0.50
|
0.36, 0.63
|
|
Sibling’s behavior
|
0.17
|
0.13, 0.21
|
0.52
|
0.48, 0.56
|
0.35
|
0.31, 0.40
|
|
1d
|
Children with an opposite-sex sibling
|
1331
|
Peer’s behavior
|
0.87
|
0.80, 0.94
|
0.49
|
0.35, 0.63
|
0.59
|
0.45, 0.73
|
|
Sibling’s behavior
|
0.11
|
0.06, 0.16
|
0.42
|
0.37, 0.47
|
0.33
|
0.28, 0.37
|
|
1e
|
Children with a near-aged sibling
|
1286
|
Peer’s behavior
|
0.78
|
0.71, 0.84
|
0.34
|
0.22, 0.47
|
0.43
|
0.29, 0.56
|
|
Sibling’s behavior
|
0.22
|
0.18, 0.26
|
0.59
|
0.55, 0.63
|
0.48
|
0.44, 0.53
|
|
1f
|
Children with a much younger or older sibling
|
1408
|
Peer’s behavior
|
0.94
|
0.87, 1.01
|
0.62
|
0.49, 0.75
|
0.55
|
0.41, 0.68
|
|
Sibling’s behavior
|
0.10
|
0.05, 0.15
|
0.37
|
0.33, 0.41
|
0.26
|
0.22, 0.30
|
- N, number of observations of children
- P < 0.001 for all
- Each child from a sibling pair was randomly assigned to be the target child or sibling
- Linear mixed models adjusted for age and sex of the target children, age of the sibling, sex of the sibling pair, birth order, parental education, and country and family ID as random effects
- In model 1e the age difference between the sibling is ≤2.7 years. In model 1f the age difference between siblings is > 2.7 years
