A Median Analysis of Factors Influencing Body Fatness in Urban School-Age Children in Cameroon
Table 4
Multiple quantile regression coefficients for the association between selected behavioral factors and percentage body fat.
Factors
Full sample
Boys
Girls
Estimate
SE
Value
Estimate
SE
Value
Estimate
SE
Value
Intercept
9.01
2.66
0.001
9.12
4.50
0.043
15.26
4.10
<0.001
Fruit and vegetable consumption
Never
0
0
0
Occasionally
−2.62
0.61
<0.001
−2.37
0.94
0.012
−1.80
1.00
0.074
Everyday
−4.95
0.67
<0.001
−4.69
1.08
<0.001
−3.39
1.05
0.001
Breakfast consumption
Skip/rarely
0
0
0
1–2 times/week
−0.37
0.76
0.172
−0.01
1.18
1.000
−1.00
1.15
0.382
3–4 times/week
−2.11
0.87
0.016
−1.70
1.15
0.142
−4.19
1.44
0.004
Daily
−3.29
0.82
<0.001
−2.76
1.10
0.013
−5.42
1.22
<0.001
Snacks (in-between meals)
Once a day
0
0
0
Twice a day
0.23
0.78
0.765
0.40
1.31
0.758
2.19
1.36
0.107
Three times a day
2.11
0.86
0.015
3.45
1.30
0.008
2.40
1.55
0.125
Greater than three times a day
3.69
0.82
<0.001
4.33
1.28
0.001
5.32
1.47
<0.001
Out-of-school physical activity
≤2 times/week
0
0
0
>2–4 times/week
−2.39
0.58
<0.001
−3.51
1.09
0.002
−1.62
0.85
0.050
>4–7 times/week
−3.66
0.81
<0.001
−3.66
0.86
<0.001
−6.55
1.66
<0.001
Out-of-school sedentary lifestyle
≤1 hour/day
0
0
0
>1–3 hours/day
2.22
0.57
<0.001
3.12
0.84
<0.001
2.40
0.91
0.009
>3–6 hours/day
3.01
0.68
<0.001
3.83
1.09
<0.001
4.74
1.10
<0.001
Motorization to school
No
0
0
0
Yes
1.39
0.49
0.005
1.22
0.76
0.107
1.20
0.76
0.116
Type of school
Public
0
0
0
Private
0.74
0.61
0.222
0.44
1.04
0.669
0.95
0.99
0.335
Parental education
No education
0
0
0
Primary
0.51
0.79
0.516
0.50
1.22
0.682
0.91
1.22
0.457
Secondary
0.49
0.76
0.514
0.27
1.01
0.789
1.87
1.19
0.116
Higher education
0.42
0.74
0.567
0.70
1.09
0.523
0.58
1.11
0.598
SE, standard error. Model adjusted for design variables (school, class, and region), age, gender, and all variables in the unadjusted analysis. The estimate associated with each category is the difference in median percentage body fat compared with the reference category.
