Table 3 Association between moderate and vigorous-intensity physical activity at 11, 15 and 18 years with body fat mass and lean mass index at 18 years in boys and girls belonging to the 1993 Pelotas (Brazil) Birth Cohort
Physical Activity Intensity in Tertiles | Fat Mass Index (FMI) | Lean Mass Index (LMI) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | Boys | n | Girls | n | Boys | N | Girls | |||||
β (95 % CI) | P | β (95 % CI) | p | β (95 % CI) | p | β (95 % CI) | P | |||||
Moderate-intensity physical activity at 11y | 1782 | 0.7 | 1842 | 0.3 | 1782 | 0.003 | 1842 | 0.005 | ||||
1st | 724 | 0 | 590 | 0 | 724 | 0 | 590 | 0 | ||||
2nd | 548 | -0.14 (-0.48; 0.20) | 577 | 0.00 (-0.42; 0.40) | 548 | 0.13 (-0.04; 0.29) | 577 | 0.11 (-0.06; 0.28) | ||||
3rd | 510 | -0.01 (-0.36; 0.33) | 675 | 0.27 (-0.13; 0.66) | 510 | 0.30 (0.13; 0.48) | 675 | 0.26 (0.10; 0.43) | ||||
Vigorous-intensity physical activity at 11y | 1780 | 0.4 | 1843 | 0.6 | 1780 | 0.4 | 1843 | 0.008 | ||||
1st | 413 | 0 | 1231 | 0 | 413 | 0 | 1231 | 0 | ||||
2nd | 485 | -0.07 (-0.48; 0.33) | 369 | -0.14 (-0.56; 0.27) | 485 | 0.09 (-0.11; 0.29) | 369 | 0.06 (-0.11; 0.23) | ||||
3rd | 882 | -0.23 (-0.59; 0.13) | 243 | -0.20 (-0.70; 0.28) | 882 | 0.12 (-0.07; 0.30) | 243 | 0.32 (0.12; 0.52) | ||||
Moderate-intensity physical activity at 15y | 1796 | 0.6 | 1914 | 0.2 | 1796 | 0.008 | 1914 | <0.001 | ||||
1st | 681 | 0 | 553 | 0 | 681 | 0 | 553 | 0 | ||||
2nd | 609 | -0.18 (-0.51; 0.16) | 631 | 0.18 (-0.22; 0.59) | 609 | -0.08 (-0.25; 0.08) | 631 | 0.15 (-0.01; 0.31) | ||||
3rd | 506 | -0.03 (-0.39; 0.32) | 730 | 0.36 (-0.03; 0.75) | 506 | 0.20 (0.02; 0.38) | 730 | 0.31 (0.15; 0.47) | ||||
Vigorous-intensity physical activity at 15y | 1796 | 0.001 | 1914 | 0.2 | 1796 | <0.001 | 1914 | 0.02 | ||||
1st | 436 | 0 | 1533 | 0 | 436 | 0 | 1533 | 0 | ||||
2nd | 390 | -0.50 (-0.92; -0.09) | 223 | 0.07 (-0.43; 0.57) | 390 | 0.28 (0.07; 0.49) | 223 | 0.22 (0.02; 0.42) | ||||
3rd | 970 | -0.65 (-1.00; -0.30) | 158 | -0.50 (-1.09; 0.07) | 970 | 0.50 (0.34; 0.68) | 158 | 0.23 (0.00; 0.46) | ||||
Moderate-intensity physical activity at 18y | 1901 | 0.001 | 1949 | 0.07 | 1901 | 0.03 | 1949 | <0.001 | ||||
1st | 500 | 0 | 779 | 0 | 500 | 0 | 779 | 0 | ||||
2nd | 642 | -0.08 (-0.43; 0.28) | 658 | 0.27 (-0.09; 0.64) | 642 | 0.12 (-0.06; 0.30) | 658 | 0.27 (0.12; 0.42) | ||||
3rd | 759 | -0.56 (-0.90; -0.21) | 512 | 0.45 (0.05; 0.84) | 759 | 0.24 (0.06; 0.41) | 512 | 0.50 (0.34; 0.66) | ||||
Vigorous-intensity physical activity at 18y | 1899 | 0.4 | 1949 | 0.3 | 1899 | <0.001 | 1949 | <0.001 | ||||
1st | 786 | 0 | 1459 | 0 | 786 | 0 | 1459 | 0 | ||||
2nd | 209 | 0.30 (-0.15; 0.77) | 101 | 0.21 (-0.50; 0.93) | 209 | 0.10 (-0.13; 0.34) | 101 | 0.36 (0.07; 0.65) | ||||
3rd | 904 | 0.10 (-0.19; 0.39) | 389 | 0.29 (-0.11; 0.69) | 904 | 0.46 (0.30; 0.60) | 389 | 0.34 (0.18; 0.50) | ||||