Table 2.
Number and type of fall-related injuries since intervention inception*
| Total | Intervention | Control | ||
|---|---|---|---|---|
| Total number of person-years** | 4579.4 | 3068.0 | 1511.4 | |
| Total number of episodes (incidence rate per 1000 person years)*** | 679 (148) | 462 (151) | 217 (144) | |
| Injury Type: | Diagnosis codes | |||
| Hip fracture episodes (incidence rate per 1000 person years) | 122 (27) | 79 (26) | 43 (28) | |
| Hip | 820.xx | 122 | 79 | 43 |
| Other fracture episodes (incidence rate per 1000 person years) | 260 (57) | 172 (56) | 88 (58) | |
| Pelvis | 808.xx | 31 | 18 | 13 |
| Rib(s) | 807.0x – 807.1x | 33 | 26 | 7 |
| Clavicle | 810.xx | 10 | 5 | 5 |
| Humerus | 812.xx | 42 | 25 | 17 |
| Radius & ulna | 813.xx | 61 | 39 | 22 |
| Carpal - navicular, etc. | **** | 20 | 11 | 9 |
| Hand - metacarpal | 815.xx | 14 | 10 | 4 |
| Hand - phalanges | 816.xx | 13 | 10 | 3 |
| Hand - multiple | 817.xx | 0 | 0 | 0 |
| Femur, tibia, fibula | 821.xx, 823.xx | 67 | 44 | 23 |
| Patella | 822.xx | 5 | 5 | 0 |
| Ankle | 824.xx | 23 | 16 | 7 |
| Head Injury episodes (incidence rate per 1000 person years) | 55 (12) | 28 (9) | 27 (18) | |
| Head fracture - vault | 800.xx | 0 | 0 | 0 |
| Head fracture - base | 801.xx | 1 | 0 | 1 |
| Head fracture - face | 802.xx | 18 | 7 | 11 |
| Head fracture - other | 803.xx | 0 | 0 | 0 |
| Head fracture - multiple | 804.xx | 0 | 0 | 0 |
| Head trauma | 850.xx–854.xx | 41 | 22 | 19 |
| Joint dislocation episodes (incidence rate per 1000 person years) | 20 (4) | 15 (5) | 5 (3) | |
| Shoulder | 831.xx | 7 | 5 | 2 |
| Elbow | 832.xx | 0 | 0 | 0 |
| Wrist | 833.xx | 1 | 0 | 1 |
| Knee | 836.xx | 12 | 10 | 2 |
| Fall requiring medical care (incidence rate per 1000 person years) | E Codes | 492 (107) | 338 (110) | 154 (102) |
| Stairs or steps | E880.x | 10 | 6 | 4 |
| Ladders or scaffolding | E881.x | 1 | 1 | 0 |
| Building or structure | E882 | 0 | 0 | 0 |
| Hole | E883.x | 0 | 0 | 0 |
| One level to another | E884.x | 57 | 47 | 10 |
| Same level - tripping | E885.x | 124 | 92 | 32 |
| Same level - pushed | E886.x | 1 | 0 | 1 |
| Other and unspecified | E888.x | 397 | 270 | 127 |
This table provides counts of fall-related injuries, by injury type, as well as counts of different types of external cause of injury codes.
The table also provides the counts and incidence rate for all injuries combined, as well as for the major injury categories (hip fracture, other fractures, head injury, joint dislocation, and falls requiring medical care).
Based on primary and secondary ICD 9 diagnosis codes, as well as external cause of injury (“E”) codes.
Number of person-years of observation from the inception of the intervention at each site to the end date for availability of claims data.
The number of episodes of fall-related injuries from the inception of the intervention at each site to the end date for availability of claims data. Since a given episode may involve multiple injuries, listed injuries are not mutually exclusive; therefore, the numbers for each specific type of injury do not add up to the total number in the larger categories of injury, and the number of episodes in the larger categories do not add up to the total number of episodes.
ICD-9 codes 814, 814.0, 814.00, 814.01, 814.09, 814.1, 814.10, 814.11, 814.19