Table 3.
Crude and adjusted analyses of changes in self-reported physical activity from 23 to 30 years of age and anthropometric and body composition outcomes at 30 years of age.
| Variables | Mean (95%CI) | Crude β (95%CI) | Adjusted* β (95%CI) |
|---|---|---|---|
| BMI at 30 years (kg/m 2 ) | p = 0.042 | p < 0.001a | |
| Inactive–Inactive | 26.88 (26.60;27.16) | Ref | Ref |
| Inactive–Active | 26.53 (26.03;27.02) | −0.36 (−0.95;0.24) | −0.66 (−1.04;−0.27) |
| Active–Inactive | 27.41 (26.97;27.86) | 0.53 (0.01;1.05) | 0.05 (−0.29;0.40) |
| Active–Active | 26.63 (26.22;27.04) | −0.25 (−0.81;0.31) | −0.60 (−0.97;−0.23) |
| Waist circumference at 30 years (cm) | p < 0.001 | p < 0.001b | |
| Inactive–Inactive | 84.02 (83.40;84.65) | Ref | Ref |
| Inactive–Active | 83.76 (82.64;84.89) | −0.26 (−1.60;1.09) | −1.85 (−2.87;−0.84) |
| Active–Inactive | 87.64 (86.62;88.67) | 3.62 (2.45;4.79) | 1.05 (0.16;1.94) |
| Active–Active | 86.07 (85.08;87.06) | 2.05 (0.79;3.30) | −1.37 (−2.35;−0.39) |
| Visceral abdominal fat at 30 years (cm) | p < 0.001 | p < 0.001b | |
| Inactive–Inactive | 5.76 (5.66;5.87) | Ref | Ref |
| Inactive–Active | 5.68 (5.48;5.88) | −0.08 (−0.31;0.14) | −0.46 (−0.66;−0.25) |
| Active–Inactive | 6.43 (6.25;6.61) | 0.67 (0.47;0.86) | −0.02 (−0.20;0.15) |
| Active–Active | 6.15 (5.99;6.32) | 0.39 (0.18;0.60) | −0.43 (−0.62;−0.23) |
| Fat mass index at 30 years (kg/m 2 ) | p < 0.001 | p < 0.001b | |
| Inactive–Inactive | 9.46 (9.24;9.67) | Ref | Ref |
| Inactive–Active | 8.32 (7.92;8.72) | −1.14 (−1.60;−0.67) | −0.59 (−0.98;−0.20) |
| Active–Inactive | 8.39 (8.05;8.74) | −1.06 (−1.47;−0.66) | 0.26 (−0.08;0.61) |
| Active–Active | 7.36 (7.01;7.71) | −2.09 (−2.53;−1.66) | −0.53 (−0.90;−0.15) |
| Android/Gynoid fat ratio at 30 years (g) | p < 0.001 | p < 0.001b | |
| Inactive–Inactive | 0.49 (0.48;0.50) | Ref | Ref |
| Inactive–Active | 0.50 (0.48;0.51) | 0.01 (−0.01;0.03) | −0.01 (−0.03;−0.00) |
| Active–Inactive | 0.53 (0.52;0.55) | 0.05 (0.03;0.06) | 0.00 (−0.01;0.02) |
| Active–Active | 0.51 (0.49;0.52) | 0.02 (0.01;0.03) | −0.04 (−0.05;−0.02) |
BMI: body mass index.
*Adjusted for sex, skin colour, family income at birth, maternal schooling at birth, birth weight, socioeconomic status at 23 years, schooling at 23 years, smoking at 23 years, and daily energy intake at 23 years.
aAdjusted also for BMI at 23 years.
bAdjusted also for waist circumference at 23 years.
Socioeconomic status at 23 years is the covariate with more missing data.
N of the analyses from the top to the bottom of the table: crude - 3,184; 3,201; 3,151; 3,081; 3,099; adjusted - 2,355; 2,457; 2,421; 2,375; 2,387.