Table 3.
Bone mass values during the 3-year period (n = 13).
| Descriptive | Reliable Change a Shown in Absolute Values with % in Brackets |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | T4 | T5 | T1–T3 (n = 12) | T3–T5 (n = 9) | T1–T5 (n = 9) | |||||||
| (n = 13) | (n = 13) | (n = 12) | (n = 12) | (n = 9) | Dec | Stable | Inc | Dec | Stable | Inc | Dec | Stable | Inc | |
| TBLH | ||||||||||||||
| BMC (g) | 2764 ± 459 | 2848 ± 438 | 2952 ± 422 | 2995 ± 422 | 3002 ± 323 | 0 (0%) |
4 (33%) |
8 (67%) |
0 (0%) |
8 (89%) |
1 (11%) |
0 (0%) |
1 (11%) |
8 (89%) |
| BMD (g/cm2) | 1.164 ± 0.080 | 1.189 ± 0.076 | 1.205 ± 0.069 | 1.207 ± 0.066 | 1.215 ± 0.057 | 0 (0%) |
4 (33%) |
8 (67%) |
0 (0%) |
5 (56%) |
4 (44%) |
0 (0%) |
1 (11%) |
8 (89%) |
| Z-score | 0.26 ± 0.84 | 0.32 ± 0.73 | 0.16 ± 0.72 | 0.19 ± 0.90 | −0.05 ± 0.62 | 4 (33%) |
7 (58%) |
1 (8%) |
4 (44%) |
5 (56%) |
0 (0%) |
5 (56%) |
4 (44%) |
0 (0%) |
| L1–L4 | ||||||||||||||
| BMC (g) | 64.1 ± 11.0 | 67.3 ± 12.2 | 71.1 ± 12.6 | 73.7 ± 10.7 | 75.0 ± 9.0 | 4 (33%) |
1 (8%) |
7 (58%) |
0 (0%) |
4 (44%) |
5 (56%) |
4 (44%) |
0 (0%) |
5 (56%) |
| BMD (g/cm2) | 1.066 ± 0.083 | 1.093 ± 0.081 | 1.119 ± 0.087 | 1.139 ± 0.078 | 1.150 ± 0.069 | 5 (42%) |
1 (8%) |
6 (50%) |
0 (0%) |
4 (44%) |
5 (56%) |
4 (44%) |
0 (0%) |
5 (56%) |
| Z-score | −0.70 ± 0.61 | −0.79 ± 0.57 | −0.72 ± 0.62 | −0.59 ± 0.57 | −0.51 ± 0.51 | 4 (33%) |
8 (67%) |
0 (0%) |
0 (0%) |
4 (44%) |
5 (56%) |
1 (11%) |
3 (33%) |
5 (56%) |
| Femur Neck | ||||||||||||||
| BMC (g) | 5.9 ± 1.1 | 6.0 ± 1.1 | 6.2 ± 1.0 | 6.3 ± 1.1 | 6.2 ± 0.6 | 0 (0%) |
9 (75%) |
3 (25%) |
0 (0%) |
9 (100%) |
0 (0%) |
0 (0%) |
4 (44%) |
5 (56%) |
| BMD (g/cm2) | 1.104 ± 0.119 | 1.117 ± 0.121 | 1.141 ± 0.110 | 1.153 ± 0.130 | 1.130 ± 0.088 | 0 (0%) |
7 (58%) |
5 (42%) |
0 (0%) |
7 (78%) |
2 (22%) |
0 (0%) |
4 (44%) |
5 (56%) |
| Total Hip | ||||||||||||||
| BMC (g) | 40.4 ± 6.6 | 40.7 ± 6.4 | 41.6 ± 6.1 | 41.9± 6.2 | 41.4 ± 3.6 | 0 (0%) |
10 (83%) |
2 (17%) |
0 (0%) |
9 (100%) |
0 (0%) |
0 (0%) |
5 (56%) |
4 (44%) |
| BMD (g/cm2) | 1.129 ± 0.114 | 1.130 ± 0.110 | 1.142 ± 0.101 | 1.147 ± 0.109 | 1.131 ± 0.074 | 1 (8%) |
10 (83%) |
1 (8%) |
0 (0%) |
8 (89%) |
1 (11%) |
0 (0%) |
5 (56%) |
4 (44%) |
Descriptive values are presented as mean ± standard deviation. a Decrease or increase indicates a critical value lower than −1.96 or higher than 1.96. BMC: bone mineral content; BMD: bone mineral density; Dec: decrease; Inc: increase; TBLH: total body less head.