Table 2. Bone mineral density and T-score at baseline and follow-up surveya.
Male | Pre-menopausal femaleb | Post-menopausal female | ||||
n | 146 | 99 | 212 | |||
Baseline survey in 2005 | ||||||
Bone mineral density (g/cm2) | 0.770 | (0.064) | 0.680 | (0.056) | 0.554 | (0.085) |
Range | 0.593–0.906 | 0.521–0.817 | 0.380–0.820 | |||
T-Score (%) | 99.8 | (8.2) | 105.2 | (8.7) | 85.8 | (13.2) |
Normal [n, (%)] | 144 | (98.6) | 99 | (100.0) | 140 | (66.0) |
Osteopenia [n, (%)] | 2 | (1.4) | 0 | (0.0) | 47 | (22.2) |
Osteoporosis [n, (%)] | 0 | (0.0) | 0 | (0.0) | 25 | (11.8) |
Follow-up survey in 2009 | ||||||
Bone mineral density (g/cm2) | 0.765 | (0.069)c | 0.669 | (0.062)c | 0.527 | (0.084)c |
Range | 0.565–0.913 | 0.482–0.803 | 0.330–0.725 | |||
T-Score (%) | 99.1 | (8.8)c | 103.6 | (9.6)c | 81.7 | (13.0)c |
Normal [n, (%)] | 142 | (97.3) | 98 | (99.0) | 116 | (54.7) |
Osteopenia [n, (%)] | 4 | (2.7) | 1 | (1.0) | 56 | (26.4) |
Osteoporosis [n, (%)] | 0 | (0.0) | 0 | (0.0) | 40 | (18.9) |
Data are mean (standard deviation), range, or percent.
Newly thirty five female subjects reached menopause four years later.
P<0.001 vs baseline by paired t-test.