Table 2.
Boys | Girls | |||||||
---|---|---|---|---|---|---|---|---|
Measurement, Mean (SD) | Unadjusted Estimate (SE) |
P |
*Adjusted Estimate (SE) |
P | Unadjusted Estimate (SE) |
P |
*Adjusted Estimate (SE) |
P |
Radius 4% | ||||||||
Total area (mm2) | −36.1 (9.2) | <0.001 | −25.1 (8.1) | 0.002 | −37.6 (10.6) | <0.001 | −18.8 (8.7) | 0.034 |
Total vBMD (mg/cm3) | 4.9 (6.2) | 0.43 | 2.5 (6.3) | 0.69 | 23.0 (6.8) | 0.001 | 19.7 (7.1) | 0.007 |
Trabecular area (mm2) | −16.2 (4.1) | 0.0001 | −11.3 (3.6) | 0.002 | −16.9 (4.7) | 0.0005 | −8.5 (3.9) | 0.0336 |
Trabecular vBMD (mg/cm3) | −14.3 (7.1) | 0.045 | −17.3 (7.2) | 0.018 | 9.2 (6.8) | 0.18 | 7.2 (7.1) | 0.32 |
Tibia 4% | ||||||||
Total area (mm2) | −114.7 (24.2) | <0.001 | −71.5 (17.4) | <0.001 | −107.8 (23.7) | <0.001 | −54.9 (17.9) | 0.003 |
Total vBMD (mg/cm3) | −2.01 (6.3) | 0.75 | −3.15 (6.5) | 0.63 | 18.3 (7.3) | 0.014 | 14.6 (7.5) | 0.055 |
Trabecular area (mm2) | −51.6 (10.9) | <0.001 | −32.2 (7.9) | <0.001 | −48.1 (10.7) | <0.001 | −24.7 (8.1) | 0.003 |
Trabecular vBMD (mg/cm3) | −6.01 (8.2) | 0.47 | −7.2 (8.5) | 0.40 | 16.3 (9.5) | 0.09 | 10.1 (9.8) | 0.31 |
Tibia 38% | ||||||||
Total area (mm2) | −48.5 (10.1) | <0.001 | −30.1 (6.4) | <0.001 | −34.8 (10.0) | <0.001 | −11.7 (6.9) | 0.09 |
Cortical area (mm2) | −30.5 (6.5) | <0.001 | −18.2 (3.9) | <0.001 | −23.2 (6.2) | <0.001 | −8.4 (3.9) | 0.033 |
Cortical vBMD (mg/cm3) | 5.8 (6.3) | 0.36 | 6.5 (6.6) | 0.33 | 14.2 (8.1) | 0.08 | 17.1 (8.2) | 0.038 |
Cortical thickness (mm) | −0.29 (0.10) | 0.003 | −0.15 (0.08) | 0.056 | −0.29 (0.10) | 0.004 | −0.11 (0.08) | 0.13 |
Endosteal circumference (mm) | −2.94 (0.90) | 0.001 | −1.92 (0.82) | 0.02 | −1.74 (0.93) | 0.06 | −0.40 (0.85) | 0.64 |
Periosteal circumference (mm) | −4.97 (1.03) | <0.001 | −3.06 (0.67) | <0.001 | −3.54 (1.05) | 0.001 | −1.11 (0.72) | 0.13 |
Polar strength strain index (mm3)** | −153.9 (30.2) | <0.001 | −71.8 (36.2) | 0.0496 |
Adjusted for age, radial/tibial length, and Tanner stage
Adjusted for age and Tanner stage