Table 1.
Participation rate and differences in characteristics between participants and non-participants.
| Group | Participation rate, % | All fracture patients, n=2155 | Participants n=1458 | Non-participants n=697 | P value |
|---|---|---|---|---|---|
| Sex, male | 68.5 | 1026 (48.0) | 703 (48.7) | 323 (46.5) | 0.42 |
| Age at fracture | |||||
| 20-29 years | 68.1 | 310 (14.4) | 211 (14.5) | 99 (14.2) | 0.02 |
| 30-39 years | 70.0 | 270 (12.5) | 189 (13.0) | 81 (11.6) | |
| 40-49 years | 68.9 | 280 (13.0) | 193 (13.2) | 87 (12.5) | |
| 50-59 years | 70.4 | 321 (14.9) | 226 (15.5) | 95 (13.6) | |
| 60-69 years | 72.0 | 349 (16.1) | 249 (17.1) | 97 (13.9) | |
| 70-79 years | 64.2 | 282 (13.1) | 181 (12.4) | 101 (14.5) | |
| 80+ years | 60.4 | 346 (16.1) | 209 (14.3) | 137 (19.7) | |
| Age at fracture, Continuous, years | - | 57.5, 38.4-73.4 | 56.6, 38.2-71.3 | 59.0, 39.2-77.1 | 0.02 |
| Socioeconomic status | |||||
| Quintile 1 (most disadvantaged) | 62.6 | 463 (22.5) | 290 (20.9) | 173 (25.9) | 0.02 |
| Quintile 2 | 66.0 | 412 (20.0) | 272 (19.6) | 140 (20.9) | |
| Quintile 3 | 68.3 | 590 (28.6) | 403 (29.0) | 187 (28.0) | |
| Quintile 4 | 70.0 | 387 (18.8) | 271 (19.5) | 116 (17.3) | |
| Quintile 5 | 74.5 | 208 (10.1) | 155 (11.1) | 53 (7.9) | |
| Fracture site (% single fracture only) | |||||
| Face/skull | 55.4 | 92 (4.6) | 51 (3.8) | 41 (6.4) | 0.01 |
| Vertebra | 59.9 | 177 (8.9) | 106 (7.8) | 71 (11.0) | 0.02 |
| Rib | 59.6 | 104 (5.2) | 62 (4.6) | 42 (6.5) | 0.07 |
| Clavicle/scapula | 75.8 | 66 (3.3) | 50 (3.7) | 16 (2.5) | 0.16 |
| Pelvis | 61.4 | 44 (2.2) | 27 (2.0) | 17 (2.6) | 0.35 |
| Forearm/ humerus | 72.3 | 213 (10.7) | 154 (11.4) | 59 (9.2) | 0.14 |
| Wrist | 72.3 | 318 (15.9) | 230 (17.0) | 88 (13.7) | 0.06 |
| Hand/fingers/thumb | 63.0 | 273 (13.7) | 172 (12.7) | 101 (15.7) | 0.07 |
| Hip | 69.5 | 118 (5.9) | 82 (6.1) | 36 (5.6) | 0.69 |
| Femur/patella/tibia/fibula | 69.6 | 135 (6.8) | 94 (6.9) | 41 (6.4) | 0.64 |
| Ankle | 74.8 | 202 (10.1) | 151 (11.1) | 51 (7.9) | 0.03 |
| Foot/ toes | 68.9 | 257 (12.9) | 177 (13.1) | 80 (12.4) | 0.70 |
| Multiple fractures | 65.4 | 156 (7.2) | 102 (7.0) | 54 (7.8) | 0.53 |
Results presented as percent (%), median, interquartile range or n (%). Missing data: SES n=95, Fracture site n=156 (multiple fractures).