Journal of Obesity / 2019 / Article / Tab 4

Research Article

Change and Stability in Sibling Resemblance in Obesity Markers: The Portuguese Sibling Study on Growth, Fitness, Lifestyle, and Health

Table 4

Parameter estimates and variance components for each obesity marker.

Fixed effects%BFBMIWC
Estimate ± SEEstimate ± SEEstimate ± SE

Intercept (BB baseline)22.63 ± 1.9122.09 ± 0.9571.57 ± 2.21
BB follow-up−1.42 ± 1.55−0.38 ± 0.80−0.02 ± 2.09
SS baseline4.06 ± 1.35−1.04 ± 0.80−4.87 ± 1.79
SS follow-up5.88 ± 1.64−0.70 ± 0.95−4.58 ± 2.03
BS baseline2.11 ± 1.25−1.00 ± 0.59−2.84 ± 1.47
BS follow-up1.96 ± 1.33−1.22 ± 0.65−3.68 ± 1.55
Twins baseline1.80 ± 1.050.39 ± 0.551.11 ± 1.21
Twins follow-up0.72 ± 1.470.28 ± 0.78−0.15 ± 1.65
Maturity offset0.49 ± 0.230.86 ± 0.122.30 ± 0.27
Screen time0.27 ± 0.140.10 ± 0.070.14 ± 0.16
Healthy diet0.01 ± 0.020.00 ± 0.01-0.02 ± 0.02
Unhealthy diet−0.10 ± 0.02−0.03 ± 0.01-0.01 ± 0.02
Physical activity−0.22 ± 0.15−0.04 ± 0.10−0.09 ± 0.22
Parental support for PA−0.05 ± 0.05−0.03 ± 0.03−0.07 ± 0.06
Father occupation−0.21 ± 0.150.02 ± 0.02−0.03 ± 0.17
Mother occupation−0.01 ± 0.14−0.15 ± 0.08−0.07 ± 0.06

Variance components (σ2)
Between siblings’
 BB baseline16.82 ± 8.422.47 ± 2.1422.82 ± 13.47
 SS baseline7.52 ± 4.354.63 ± 2.2416.24 ± 8.85
 BS baseline0.87 ± 4.800.43 ± 0.920.32 ± 4.37
 BB follow-up12.59 ± 7.212.46 ± 2.2727.94 ± 16.78
 SS follow-up11.57 ± 6.076.00 ± 2.9316.59 ± 10.37
 BS follow-up01.11 ± 0.930
Within siblings’
 BB baseline20.20 ± 6.027.69 ± 2.2339.22 ± 11.43
 SS baseline6.23 ± 2.332.80 ± 0.9914.26 ± 5.04
 BS baseline29.67 ± 6.705.29 ± 1.2027.04 ± 6.10
 BB follow-up19.83 ± 5.818.41 ± 2.3949.66 ± 14.14
 SS follow-up8.04 ± 2.913.54 ± 1.3218.94 ± 6.90
 BS follow-up32.20 ± 5.004.71 ± 1.0425.19 ± 3.94
 Log likelihood−1026.99−803.19−1073.55

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