Mean height (m) of fatal and nonfatal falls by hazard source and activity ± SEM.
| Hazard source/activity | n | Fatal | n | Nonfatal |
|---|---|---|---|---|
| Climber falling from tree | 56 | 13.6 ± 0.8 | 69 | 6.4 ± 0.5 |
| Aerial device operator falling from bucket | 14 | 11.0 ± 1.2 | 5 | 7.3 ± 1.0 |
| Aerial device operator falling with device | 12 | 11.3 ± 1.1 | 5 | 8.8 ± 0.3 |
| Worker falling from or with ladder | 3 | 8.6 ± 1.8 | 8 | 3.2 ± 0.4 |