Table 2.
Changes in anthropometric assessment over 8-week study period
| Variable | Insulin (N=18) | Placebo (N=21) | p | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Baseline | Week 8 change | Baseline | Week 8 change | ||||||
|
|
|
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| Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||
| Body weight (kg) | 82.5 | 16.2 | 0.8 | 1.9 | 95.8 | 16.8 | -2.8 | 9.6 | 0.411 |
| BMI (kg/m2) | 28.5 | 6.2 | 0.3 | 0.6 | 32.2 | 5.6 | -0.1 | 0.9 | 0.167 |
| Waist circumference (umbilicus, cm) | 101.7 | 11.3 | 1.2 | 3.1 | 111.9 | 15.4 | 0.04 | 2.3 | 0.212 |
| Waist-hip ratio | 0.99 | 0.06 | 0.01 | 0.03 | 1.00 | 0.08 | -0.002 | 0.04 | 0.375 |
| Resting energy expenditure (kcal/day) | 1 772 | 371 | 65 | 284 | 1 967 | 429 | -72 | 372 | 0.627 |
| DXA BMC (g) | |||||||||
| Trunk | 571 | 92 | 4 | 29 | 637 | 106 | -4 | 29 | 0.379 |
| Abdomen | 66 | 31 | -3 | 19 | 62 | 11 | 0.2 | 8 | 0.529 |
| Total body | 2 342 | 345 | -5 | 48 | 2 442 | 286 | 4 | 61 | 0.612 |
| DXA fat mass (g) | |||||||||
| Trunk | 11 846 | 5 312 | 288 | 894 | 16 430 | 6 807 | 14.8 | 989 | 0.852 |
| Abdomen | 3 378 | 1 648 | 35.7 | 305 | 4 753 | 2 253 | 9 | 434 | 0.679 |
| Total body | 23 393 | 11 154 | 315 | 1 193 | 29 404 | 12 036 | 1 011 | 4 781 | 0.207 |
| DXA fat percentage (%) | |||||||||
| Trunk | 27.8 | 8.9 | 0.4 | 1.5 | 33.0 | 8.9 | 0.1 | 1.2 | 0.935 |
| Abdomen | 29.1 | 10.1 | 0.7 | 1.3 | 34.7 | 8.9 | -0.03 | 1.8 | 0.540 |
| Total body | 27.3 | 9.1 | 0.2 | 0.9 | 31.5 | 7.3 | -0.01 | 0.9 | 0.813 |
| DXA lean mass (g) | |||||||||
| Trunk | 28 485 | 4 025 | 125 | 846 | 30 822 | 4 576 | -80 | 822 | 0.665 |
| Abdomen | 7 596 | 1 255 | -149 | 617 | 8 178 | 1 730 | 63 | 488 | 0.293 |
| Total body | 57 880 | 8 629 | 479 | 1 652 | 61 849 | 9 827 | -41 | 1 455 | 0.145 |
| DXA total mass (g) | |||||||||
| Trunk | 42 569 | 11 677 | -1 249 | 6 951 | 47 889 | 9 955 | -70 | 1 402 | 0.586 |
| Abdomen | 11 037 | 2 442 | -113 | 966 | 12 993 | 3 764 | 72 | 717 | 0.316 |
| Total body | 84 216 | 16 524 | 789 | 2 318 | 93 469 | 18 658 | 1 202 | 6 654 | 0.270 |
Notes: 1) Week 8 change equals week 8 value minus baseline value; 2) BMI, body mass index; 3) MAQ, Modifiable Activity Questionnaire (average hours of activity per week; 4) DXA, dual-energy X-ray absorptiometry; 5) BMC, bone mineral content; 6) p values were based on ANCOVA comparing between group differences in week 8 changes controlling for baseline values, age and education.