Estimates of agreement (%) on coding of intent and the complete E code for selected mechanisms of injury: computerized hospital discharge data compared with expert review of medical records
| Agreement | Kappa* | |
|---|---|---|
| *The kappa statistic measure of agreement is scaled to be 0 when the amount of agreement is what would be expected by chance and 1 when there is perfect agreement, adjusted for chance. | ||
| †This category includes all mechanisms of injury identified in table 1. | ||
| All mechanisms of injury† | 86.9 | 0.83 |
| Intent coding | 95.3 | 0.81 |
| Complete E code | 66.1 | 0.64 |
| Falls | ||
| Intent coding | 99.3 | 0.40 |
| Complete E code | 66.1 | 0.55 |
| Motor vehicle traffic | ||
| Intent coding | 98.4 | 0.00 |
| Complete E code | 63.3 | 0.60 |
| Poisoning | ||
| Intent coding | 86.6 | 0.72 |
| Complete E code | 72.2 | 0.67 |
| Firearms | ||
| Intent coding | 83.6 | 0.73 |
| Complete E code | 56.7 | 0.50 |