Table 3.
Changes in body composition measures in the active vitamin D3 group, stratified by 2-year 25(OH)D levels above/below median
| 2-year total 25(OH)D level | 2-year free 25(OH)D level | ||||||
|---|---|---|---|---|---|---|---|
| <median (97 nmol/L) N = 175 | ≥median N = 185 | P-value | <median (21pmol/L) N = 178 | ≥median N = 182 | P-value | ||
| Weight, mean (SD), kg | Baseline | 85.3 (16.7) | 79.0 (16.0) | 87.1 (17.7) | 77.0 (13.9) | ||
| % change | −0.01% | −1.11% | 0.12 | −0.42% | −0.70% | 0.76 | |
| BMI, mean (SD), kg/m2 | Baseline | 29.2 (5.4) | 27.3 (4.9) | 30.0 (5.9) | 26.5 (3.8) | ||
| % change | 0.39% | −0.46% | 0.21 | 0.04% | −0.11% | 0.83 | |
| Waist circumference, mean (SD), cm | Baseline | 101.3 (14.3) | 96.0 (14.9) | 102.8 (15.0) | 94.4 (13.4) | ||
| % change | −0.59% | −2.16% | 0.09 | −1.00% | −1.78% | 0.43 | |
| % Body fat, mean (SD) | Baseline | 36.5 (8.6) | 35.7 (8.3) | 37.8 (9.0) | 34.5 (7.5) | ||
| % change | −0.56% | −2.01% | 0.06 | −1.21% | −1.36% | 0.93 | |
| FMI, mean (SD), kg/m2 | Baseline | 10.7 (4.2) | 9.7 (3.8) | 11.4 (4.7) | 9.0 (2.9) | ||
| % change | −0.10% | −2.14% | 0.17 | −0.91% | −1.29% | 0.92 | |
| Fat to lean mass ratio, mean (SD) | Baseline | 0.64 (0.25) | 0.61 (0.23) | 0.68 (0.27) | 0.58 (0.20) | ||
| % change | −1.33% | −3.12% | 0.15 | −2.23% | −2.20% | 0.83 | |
| VAT area, mean (SD), cm2 | Baseline | 179 (72) | 154 (71) | 190 (76) | 143 (60) | ||
| % change | 2.16% | −1.87% | 0.04 | 0.87% | −0.51% | 0.58 | |
| Truncal fat mass, mean (SD), kg | Baseline | 16.2 (6.1) | 14.4 (5.6) | 17.3 (6.5) | 13.3 (4.5) | ||
| % change | −0.22% | −3.54% | 0.07 | −1.28% | −2.45% | 0.69 | |
| Truncal-to-limb fat ratio, mean (SD) | Baseline | 1.26 (0.31) | 1.20 (0.30) | 1.28 (0.32) | 1.18 (0.28) | ||
| % change | −0.33% | −1.16% | 0.48 | −0.29% | −1.22% | 0.29 | |
| LMI, mean (SD), kg/m2 | Baseline | 16.9 (2.4) | 16.0 (2.3) | 17.0 (2.4) | 15.9 (2.2) | ||
| % change | 1.11% | 0.85% | 0.53 | 1.23% | 0.72% | 0.19 | |
| ALM, mean (SD), kg | Baseline | 21.3 (5.0) | 19.7 (5.0) | 21.2 (5.1) | 19.8 (5.0) | ||
| % change | −0.04% | 0.22% | 0.62 | 0.08% | 0.09% | 0.89 | |
| ALM/BMI, mean (SD) | Baseline | 0.74 (0.18) | 0.73 (0.18) | 0.72 (0.18) | 0.75 (0.18) | ||
| % change | −0.58% | 0.80% | 0.01 | −0.08% | 0.29% | 0.43 |
Results are adjusted for age, sex, and race/ethnicity.