Table 1 Baseline demographic and clinical characteristics, fall event cases and controls
| Â | Case | Control | % with an Event | Unadjusted ORa |
|---|---|---|---|---|
N (% of sample) | 110,625 | 1,567,412 (93.4) | – |  |
Demographics | ||||
Age mean (median) | 80 (80) | 74 (73) | – |  |
Age group (%) | ||||
 65–74 years | 30.3 | 56.9 | 3.6 | REF |
 75–84 years | 38.4 | 31.6 | 7.9 | 2.30 |
 85–89 years | 19.0 | 8.0 | 14.4 | 4.50 |
 90–94 years | 9.9 | 2.9 | 19.3 | 6.40 |
 95–99 years | 2.3 | 0.5 | 23.5 | 8.23 |
Female (%) | 63.4 | 54.1 | 7.6 | 1.50 |
Region (%) | ||||
 Northeast | 21.1 | 24.3 | 5.8 | REF |
 North Central | 38.4 | 31.7 | 7.9 | 1.39 |
 South | 27.7 | 30.9 | 6.0 | 1.04 |
 West | 12.1 | 12.3 | 6.5 | 1.13 |
 Unknown | 0.7 | 0.9 | 5.1 | 0.87 |
Baseline diagnoses (%)b | ||||
 Atrial fibrillation | 24.1 | 11.4 | 13.0 | 2.47 |
 Cancer/malignancy | 23.2 | 19.8 | 7.6 | 1.22 |
 Dementia/mental impairment | 20.1 | 4.4 | 24.5 | 5.47 |
 Depression | 18.2 | 7.6 | 14.4 | 2.68 |
 Diabetes | 32.0 | 26.8 | 7.8 | 1.30 |
 Dizziness/syncope | 27.3 | 10.0 | 16.1 | 3.36 |
 Gait/balance disorders | 22.8 | 5.3 | 23.1 | 5.26 |
 Hepatic impairment | 4.3 | 3.0 | 9.0 | 1.42 |
 Hypertension | 80.8 | 67.1 | 7.8 | 2.03 |
 Neuropathy | 17.8 | 10.7 | 10.5 | 1.81 |
 Orthostatic hypotension | 3.2 | 0.8 | 22.3 | 4.20 |
 Parkinson’s disease | 4.0 | 1.1 | 20.0 | 3.66 |
 Renal impairment | 17.9 | 9.1 | 12.2 | 2.18 |
 Substance abuse | 7.5 | 4.1 | 11.4 | 1.88 |
 Vision disturbance/deficiency | 46.9 | 43.9 | 7.0 | 1.12 |
Medical service use history (%)c | ||||
 Fracture history | 9.1 | 3.8 | 14.4 | 2.50 |
 Inpatient stays | 22.7 | 10.5 | 13.2 | 2.52 |
 For fracture | 2.0 | 0.6 | 19.6 | 3.51 |
 Ambulatory facility used | 57.4 | 41.5 | 8.9 | 1.90 |
 For fracture | 5.2 | 2.0 | 15.5 | 2.68 |