Table 4.
Risk factors for osteoporosis
| Risk factors, n (%) | Overall | US | Canada |
|---|---|---|---|
| N = 935 | N = 632 | N = 303 | |
| Age ≥65 years | 668 (71.4) | 480 (75.9) | 188 (62.0) |
| T-score ≤−2.5a | 574 (61.4) | 394 (62.3) | 180 (59.4) |
| ≥1 historical osteoporotic fractureb | 468 (50.1) | 324 (51.3) | 144 (47.5) |
| Number of risk factors | |||
| 0 | 57 (6.1) | 26 (4.1) | 31 (10.2) |
| 1 of the following risk factors: | 255 (27.3) | 159 (25.2) | 96 (31.7) |
| Age ≥65 years old | 118 (12.6) | 84 (13.3) | 34 (11.2) |
| T-score ≤ −2.5a | 99 (10.6) | 53 (8.4) | 46 (15.2) |
| ≥1 historical osteoporotic fractureb | 38 (4.1) | 22 (3.5) | 16 (5.3) |
| 2 of the following risk factors: | 414 (44.3) | 302 (47.8) | 112 (37.0) |
| Age ≥65 years old and T-score ≤−2.5a | 193 (20.6) | 145 (22.9) | 48 (15.8) |
| Age ≥65 years old and ≥1 historical osteoporotic fractureb | 148 (15.8) | 106 (16.8) | 42 (13.9) |
| T-score ≤−2.5a and ≥1 historical osteoporotic fractureb | 73 (7.8) | 51 (8.1) | 22 (7.3) |
| 3 risk factors (age ≥65 years old, T-score ≤−2.5, and ≥1 historical osteoporotic fracture) | 209 (22.4) | 145 (22.9) | 64 (21.1) |
US United States
aT-score at femoral neck or lumbar spine
bAny fracture recorded on the case report form, excluding skull, facial bones, mandible, metacarpus, finger phalanges, toe phalanges, and cervical vertebrae and not associated with known severe trauma (fall from higher than the height of stool, chair, first rung on a ladder or equivalent [>20 in] or severe trauma other than a fall) or pathological fractures