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Table 3 associated factors with three anthropometric measures in hierarchical model

From: A multivariate multilevel analysis of the risk factors associated with anthropometric indices in Iranian mid-adolescents

Fixed Effects

 

TST

AST

SST

 

Estimate

SE

Estimate

SE

Estimate

SE

Intercept

10.49*

1.17

11.11*

1.55

10.60*

1.34

Sex

girls/boy

3.02*

0.37

2.33*

0.49

2.17*

0.42

Family history of obesity

yes/no

2.25*

0.34

3.30*

0.45

3.49*

0.39

Physical activity

mild /vigorous

0.81

1.16

1.67

1.52

1.27

1.32

moderate/ vigorous

1.51

1.04

2.54*

1.40

2.24*

1.20

SES

moderate/low

0.81*

0.39

1.01*

0.52

0.80*

0.45

high/low

1.70*

0.66

2.25*

0.90

2.48*

0.77

Age groups

group2/group1

−0.67*

0.34

−0.09

0.46

0.54

0.39

group3/group1

0.30

1.30

−1.09

1.76

1.75

1.51

Screen time (min per day)

watching TV or video games

0.06

0.08

0.15

0.10

0.11

0.09

Random Effects

 

TST

AST

SST

Variance

Estimate

SE

Estimate

SE

Estimate

SE

Child-level

38.85

1.46

70.82

2.66

52.32

1.97

District-level

1.18

0.62

1.63

0.94

1.33

0.74

 

TST, AST

SE

TST, SST

SE

AST, SST

SE

Covariance

 Child-level

35.85

1.69

32.41

1.47

48.71

2.07

 District-level

0.68

0.62

0.27

0.51

1.18

0.76

Correlation

 Child-level

0.68

–

0.72

–

0.80

–

 District-level

0.49

–

0.21

–

0.80

–

  1. Abbreviation: TST triceps skinfold thickness, AST abdominal skinfold thickness, SST subscapular skinfold thickness, SES socio-economic status
  2. Age groups: group1 [14–16) years, group2 [16–18) years and group 3 [18,19,20] years
  3. *p-value < 0.05