Table 2.
State of bone density
| All (754) | Osteoporosis (n = 260) | Decreased bone mass (n = 287) | Normal (n = 207) | P-value | |
|---|---|---|---|---|---|
| SOS (m/s) | 1469 (1460, 1475.3) | 1490 (1485, 1496) | 1516 (1509, 1526) | < 0.001 | |
| YAM (%) | 65 (61, 68) | 75 (73, 77) | 88 (84, 94) | < 0.001 | |
| Male (276) | Osteoporosis (n = 65) | Decreased bone mass (n = 95) | Normal (n = 116) | P-value | |
| SOS (m/s) | 1473 (1465.5, 1478) | 1492 (1487, 1495.8) | 1518 (1509, 1529.5) | < 0.001 | |
| YAM (%) | 66 (62, 68) | 75 (73, 77) | 89 (84, 95.8) | < 0.001 | |
| Female (478) | Osteoporosis (n = 195) | Decreased bone mass (n = 192) | Normal (n = 91) | P-value | |
| SOS (m/s) | 1468 (1460, 1474) | 1489 (1484.5, 1496) | 1513 (1509.3, 1522) | < 0.001 | |
| YAM (%) | 65 (61, 68) | 75 (72.3, 77) | 87 (85, 91) | < 0.001 |
Median (first quartile, third quartile) or the number of people (%)
Based on the diagnostic criteria for osteoporosis, we classified cases with a YAM value of ≤80 as decreased bone mass, ≤70 as osteoporosis, and all others as normal
P-value: Kruskal-Wallis test