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. 2018 Jun 25;136(3):237–244. doi: 10.1590/1516-3180.2017.0405190218

Table 3: Hierarchical regression models of correlates of cardiorespiratory fitness according to sex, nutritional status and maturity status (n = 1,209).

Sex Nutritional status Somatic maturity status
Boys Girls Normal weight Overweight/obese Late On time Early
First level
Adjusted R² 0.012 0.015 0.216 0.095 0.263 - 0.112
Socioeconomic status - -0.34 (-0.63 to -0.04) - - - - -
Maternal educational status -0.46 (-0.87 to -0.04) - - - - - -
Paternal body mass index - - - -0.14 (-0.268 to -0.029) - - -
Maternal physical activity status - 2.38 (0.41 to 4.34) - - 4.57 (0.686 to 8.462) - -
Number of siblings - - 0.195 (0.058 to 0.331) - - - 0.297 (0.040 to 0.555)
Second level
Adjusted R² 0.081 0.104 0.280 0.149 0.307 0.203 0.165
Tobacco smoking - -2.65 (-4.12 to -1.18) - -2.92 (-5.494 to -0.354) - - -
Alcohol consumption - -0.92 (-1.83 to -0.01) -1.372 (-2.115 to -0.629) - - -1.249 (-2.049 to -0.449) -
Early physical activity - - - 1.51 (0.278 to 2.749) - 0.671 (0.011 to 1.330) -
Habitual physical activity 0.93 (0.59 to 1.27) 0.44 (0.18 to 0.71) 0.705 (0.492 to 0.918) - 1.10 (1.499 to 1.703) 0.515 (0.278 to 0.752) 0.619 (0.207 to 1.032)
Screen time - -0.14 (-0.21 to -0.07) -0.099 (-0.155 to -0.044) - - - -
Third level
Adjusted R² 0.246 0.333 0.401 0.253 0.458 0.365 0.425
Chronological age - -1.54 (-1.80 to -1.28) -0.854 (-1.134 to -0.574) -0.548 (-0.987 to -0.108) -1.53 (-2.085 to -0.994) -0.545 (-0.771 to -0.319) -
Age at peak height velocity - 0.70 (0.19 to 1.21) -0.675 (-1.230 to -0.121) - - - -
Waist circumference -0.22 (-0.27 to -0.17) - -0.080 (-0.150 to -0.010) -0.120 (-0.191 to -0.050) - -0.199 (-0.239 to -0.159) -0.192 (-0.238 to -0.146)

Non-significant models are not presented; P < 0.05; Adjusted according to sex.