Relationship between HR-pQCT measures and demographic and clinical variables (categorical variables). Results are expressed as mean ± SD.
| Variables | Postmenopausal | Nephritis | Arthritis | |||
|---|---|---|---|---|---|---|
| Yes (n = 42) | No (n = 36) | Yes (n = 52) | No (n = 26) | Yes (n = 40) | No (n = 38) | |
| Geometry | ||||||
| Total area | 204.5 ± 32 | 211.6 ± 36.6 | 215.7 ± 33** | 191.7 ± 31.3 | 202.0 ± 33.1 | 213.8 ± 34.6 |
| Cortical area | 51.2 ± 10.8 | 55.8 ± 12.7 | 52.9 ± 11.8 | 54.4 ± 12.2 | 51.6 ± 11 | 55.1 ± 12.7 |
| Trabecular area | 149.3 ± 31.8 | 153.2 ± 37.8 | 159.3 ± 33.9* | 134.8 ± 30.2 | 146.7 ± 31.4 | 155.7 ± 37.4 |
| Cross-sectional area | 273.2 ± 37.3 | 283.5 ± 44.7 | 284.6 ± 38.6* | 264.7 ± 42.5 | 271.0 ± 39.5* | 285 ± 41.6 |
| vBMD | ||||||
| D100 | 345.1 ± 81.7 | 376.0 ± 77.9 | 350.1 ± 83.1 | 377.9 ± 74.5 | 352 ± 81.1 | 367.1 ± 81.1 |
| Dcomp | 920.9 ± 63.4* | 950.9 ± 64.3 | 925.1 ± 70 | 954.2 ± 49.9 | 929.7 ± 68.8 | 940.1 ± 61.5 |
| Dtrab | 124.9 ± 46.6 | 144.0 ± 39.3 | 137.0 ± 46.4 | 127.1 ± 39.5 | 126.3 ± 46.1 | 141.4 ± 41.2 |
| Dmeta | 182.5 + 43.4* | 203 ± 38.4 | 195.1 ± 43.3 | 185.8 ± 39.9 | 185.6 ± 45.1 | 198.6 ± 38.4 |
| Dinn | 84.8 ± 50.2 | 102.9 ± 40.7 | 96.6 ± 49.2 | 86.2 ± 41.3 | 85.1 ± 48.4 | 101.6 ± 43.8 |
| Microarchitecture | ||||||
| Ct.Th | 0.86 ± 0.19 | 0.93 ± 0.22 | 0.87 ± 0.2 | 0.95 ± 0.21 | 0.88 ± 0.19 | 0.91 ± 0.22 |
| BVTV | 0.1 ± 0.04 | 0.12 ± 0.03 | 0.11 ± 0.04 | 0.11 ± 0.03 | 0.11 ± 0.03 | 0.12 ± 0.03 |
| Tb.N | 1.5 ± 0.3 | 1.6 ± 0.3 | 1.6 ± 0.3 | 1.5 ±0.3 | 1.5 ± 0.3 | 1.6 ± 0.3 |
| Tb.Th | 0.07 ± 0.01* | 0.08 ± 0.01 | 0.07 ± 0.02 | 0.07 ± 0.01 | 0.07 ± 0.01 | 0.07 ± 0.02 |
| Tb.Sp | 0.63 ± 0.19 | 0.58 ± 0.14 | 0.6 ± 0.17 | 0.63 ± 0.16 | 0.64 ± 0.17 | 0.58 ± 0.16 |
| Biomechanical properties | ||||||
| Stiffness | 62 ± 13.2** | 71.1 ± 14.8 | 66.4 ± 14.2 | 65.3 ± 15.4 | 63.6 ± 12.3 | 68.7 ± 16.4 |
| Estimated failure load | 2472.9 ± 501.9** | 2885.7 ± 533.7 | 2665 ± 530 | 2604 ± 588.4 | 2549.2 ± 468.9 | 2744.1 ± 610.1 |
| Apparent modulus | 2070.9 ± 467.4* | 2307.9 ± 537.9 | 2143 ± 526.6 | 2242.3 ± 482 | 2141.9 ± 441.2** | 2213.9 ± 579 |
HR-pQCT: high-resolution peripheral quantitative computed tomography; vBMD: volumetric bone mineral density; D100: average bone density; Dcomp: cortical bone density; Dtrab: trabecular bone density; Dmeta: metatrabecular bone density; Dinn: inner trabecular bone density; Ct.Th: cortical thickness; BV/TV: trabecular bone volume/tissue volume; Tb.N: trabecular number; Tb.Th: trabecular thickness; Tb.Sp: trabecular separation.