Table 2.
Rate of Falls per 100 Person-Years in Each Study Group During the 2-Year Follow-Up (24–48 months), and Incidence Rate Ratios (IRR) (95% CI) for Falls and Injurious Falls and Hazard Ratio (HR) (95% CI) For Fallers and Injured Fallers
| Outcome | D−Ex− | D+Ex− | D−Ex+ | D+Ex+ |
|---|---|---|---|---|
| Falls, all | 103.0 | 81.5 | 84.2 | 97.1 |
| Minor injurious falls | 29.4 | 20.1 | 20.0 | 24.3 |
| Medically attended injurious falls | 23.8 | 10.6 | 10.6 | 21.4 |
| Falls with fractures | 4.0 | 3.0 | 2.9 | 5.1 |
| IRR | ||||
| All falls | 1 | 0.78 (0.53–1.14) | 0.80 (0.55–1.18) | 0.88 (0.60–1.28) |
| Minor injurious falls | 1 | 0.66 (0.38–1.13) | 0.68 (0.39–1.16) | 0.79 (0.47–1.33) |
| Medically attended injurious falls | 1 | 0.45 (0.23–0.87) | 0.44 (0.23–0.86) | 0.84 (0.48–1.50) |
| HR | ||||
| All fallers | 1 | 0.86 (0.63–1.19) | 1.01 (0.74–1.39) | 0.99 (0.72–1.38) |
| Medically attended injured fallers | 1 | 0.62 (0.39–1.00) | 0.46 (0.28–0.76) | 0.55 (0.34–0.88) |
Note: D−Ex− = placebo; D+Ex− = 20 µg vitamin D daily; D−Ex+ = placebo + exercise; D+Ex+ = 20 µg vitamin D daily + exercise.