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Table 2 Familial aggregation of age, sex and age*sex adjusted aerobic fitness residuals

From: The influence of aerobic fitness on obesity and its parent-offspring correlations in a cross-sectional study among German families

  

ANOVA

Regression model from which residuals were obtained for ANOVA

Number of subjects

ICC (p-Value)

R2

age + sex + age*sex

287

0.22 (<0.001)

0.43

age + sex + age*sex + PA

223

0.19 (0.001)

0.41

age + sex + age*sex + BMI#

287

0.14 (0.004)

0.37

age + sex + age*sex + BMI# + PA

223

0.15 (0.008)

0.38

age + sex + age*sex + BMI# + PA† + BMI#*PA

223

0.15 (0.007)

0.38

age + sex + age*sex + BMI# + PA + smoking household

219

0.15 (0.008)

0.38

  1. Adjusted for multiple testing: α = 0.05/6 = 0.00833, bold numbers indicate statistically significant intraclass correlation coefficients (ICCs)
  2. Physical activity (PA) is included as two variables: average minutes per day spent in moderate or vigorous physical activity (MVPA) and average minutes of wearing time; interaction term as average minutes per day spent in MVPA*BMI
  3. #Body mass index (BMI) categories according to WHO in adults (<18.5; 18.5- < 25; 25- < 30; 30+) and IOTF in children [29]