Table 3.
Comparison of IBEM participants without a previous fracture to IBEM participants with a previous fracturea
| No Fracture N = 75 |
Fracture N = 13 |
p value (α = 0.05) | |
|---|---|---|---|
| Radius | |||
| Age (years) | 33.3 (19.6) | 30.6 (25.3) | 0.712 |
| TtBMD (mg HA/cm3) | 290.4 (81.8) | 211.4 (53.5) | <0.000 |
| CtBMD (mg HA/cm3) | 816.1 (126.5) | 714.2 (109.6) | 0.010 |
| TbBMD (mg HA/cm3) | 147.1 (47.1) | 121.3 (53.9) | 0.077 |
| CtTh (mm) | 0.84 (0.25) | 0.68 (0.16) | 0.033 |
| CtPo (%) | 2.90 (1.94) | 6.22 (5.76) | 0.006 |
| TbN (mm-1) | 1.86 (0.45) | 1.73 (0.51) | 0.855 |
| TbTh | 0.07 (0.00) | 0.06 (0.00) | 0.009a |
| TbSp (mm) | 0.53 (0.24) | 0.59 (0.26) | 0.263 |
| Failure Load (N) | 1714.5 (707.2) | 1299.9 (640.7) | 0.051 |
| Tibia | |||
| Age (years) | 34.0 (19.4) | 26.0 (24.1) | 0.192 |
| TtBMD (mg HA/cm3) | 258.5 (71.4) | 205.5 (45.6) | 0.012 |
| CtBMD (mg HA/cm3) | 832.0 (103.5) | 751.8 (93.9) | 0.011 |
| TbBMD (mg HA/cm3) | 138.9 (51.4) | 120.9 (41.9) | 0.235 |
| CtTh (mm) | 1.10 (0.26) | 0.86 (0.17) | 0.002 |
| CtPo (%) | 5.50 (3.79) | 8.27 (6.01) | 0.035 |
| TbN (mm-1) | 1.58 (0.48) | 1.53 (0.39) | 0.918 |
| TbTh | 0.07 (0.00) | 0.06 (0.00) | 0.242 |
| TbSp (mm) | 0.75 (0.86) | 0.63 (0.21) | 0.932 |
| Failure Load (N) | 4278.3 (1564.3) | 3536.4 (1399.5) | 0.113 |
aData are presented as mean and standard deviation in brackets. Bold font identifies significant difference
aA secondary analysis, removing participants on bone-altering drugs, revealed no significant difference between the no fracture and fracture group for TbTh (p=0.407)