Table 2.
Summary of body composition by dual energy X-ray absoptiometry and bone microarchitecture by high resolution peripheral quantitative computed tomography in men and women.
| Variable | Women Mean (SD) | Men Mean (SD) | |
|---|---|---|---|
| Whole body DXA 1 | |||
| Tissue Mass (kg) | 68.24 (12.24) | 78.84 (11.55) | |
| Fat Mass (kg) | 29.63 (9.28) | 25.12 (8.35) | |
| Fat Mass Index (kg/m2) | 11.55 (3.59) | 8.35 (2.76) | |
| Fat Mass (% of tissue) | 42.48 (6.79) | 31.18 (6.78) | |
| Lean Mass (kg) | 38.62 (4.41) | 53.72 (5.27) | |
| Lean Mass Index (kg/m2) | 15.06 (1.55) | 17.82 (1.44) | |
| Lean Mass (% of tissue) | 57.51 (6.79) | 68.83 (6.78) | |
| HRpQCT 2 | |||
| Total area (mm2) | R | 286.2 (42.8) | 427.0 (78.5) |
| T | 716.0 (101.5) | 904.1 (145.3) | |
| Cortical area (mm2) | R | 47.2 (8.5) | 72.0 (14.2) |
| T | 93.1 (16.3) | 142.2 (27.3) | |
| Cortical thickness (microm) | R | 682.0(165.1) | 838.2(195.6) |
| T | 917.3(192.2) | 1224.2(260.9) | |
| Cortical density (mg/cm3) | R | 902.7 (59.4) | 908.2 (48.9) |
| T | 810.1 (64.9) | 874.3 (59.8) | |
| Cortical porosity (%) | R | 3.6 (1.4) | 4.1 (1.5) |
| T | 10.0 (2.6) | 8.9 (2.5) | |
| Trabecular area (mm2) | R | 237.3 (44.3) | 350.4 (74.8) |
| T | 621.8 (108.0) | 761.5 (149.5) | |
| Trabecular density (mg/cm3) | R | 142.0 (43.1) | 178.9 (37.1) |
| T | 170.2 (40.7) | 188.2 (34.9) | |
| Trabcular number(cm−1) | R | 20.6(4.1) | 23.4(2.5) |
| T | 22.6(3.6) | 24.3(3.0) | |
| Trabecular thickness (microm) | R | 56.7(10.6) | 63.5(10.3) |
| T | 62.8(12.0) | 64.8(9.8) | |
| Trabecular separation (microm) | R | 454.9(145.4) | 370.2(62.6) |
| T | 392.8(88.1) | 354.0(54.3) |
1
n=167 for women and 175 for men.
2
In the radius, n=164 for women and 171 for men; in the tibia, n=164 for women and 175 for men. R, radius; T, tibia.