Table 2.
Between and within study groups comparison over time for body composition.
| Measurement | Timeline | Group | Time | Group × Time | p-value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | 3 months | 6 months | 12 months | Est. | p-value | Est. | p-value | Est. | |||
| Weight | Intervention | 82.0 ± 14.0 | 79.6 ± 14.0 | 81.4 ± 10.9 | 81.5 ± 11.1 | 0.286 | 0.90 | –0.126 | 0.216 | –0.582 | <0.001 |
| Control | 81.8 ± 11.0 | NA | 79.8 ± 14.1 | 79.5 ± 13.6 | |||||||
| Waist circum. | Intervention | 96.3 ± 10.2 | 94.2 ± 10.0 | 94.3 ± 10.5 | 94.3 ± 10.2 | 0.406 | 0.82 | –0.147 | 0.24 | –0.429 | 0.01 |
| Control | 95.9 ± 8.7 | NA | 95.6 ± 8.5 | 95.4 ± 8.7 | |||||||
| BMI | Intervention | 30.6 ± 4.1 | 29.7 ± 4.0 | 29.8 ± 4.3 | 29.7 ± 4.1 | 0.268 | 0.73 | –0.045 | 0.24 | –0.216 | <0.001 |
| Control | 30.2 ± 3.4 | NA | 30.1 ± 3.4 | 30.1 ± 4.1 | |||||||
| Fat mass | Intervention | 29.6 ± 7.8 | 27.4 ± 7.5 | 27.8 ± 8.1 | 28.0 ± 7.7 | –0.471 | 0.74 | –0.090 | 0.37 | –0.352 | 0.01 |
| Control | 29.3 ± 7.5 | NA | 29.1 ± 7.4 | 29.0 ± 7.6 | |||||||
| Lean mass | Intervention | 52.4 ± 10.3 | 52.2 ± 10.6 | 52.0 ± 10.4 | 51.5 ± 9.8 | 0.924 | 0.41 | –0.029 | 0.73 | –0.258 | 0.03 |
| Control | 52.4 ± 9.2 | NA | 52.2 ± 9.1 | 52.3 ± 9.2 | |||||||
BMI body mass index. NA no measurements taken at time point. Values are expressed as mean (SD). Models are adjusted for sex and age.