95% confidence intervals for the relative case fatality rates (NZ:US) and relative rate estimates from alternate US hospital data
| Mechanism | Primary analysis‡ | RCFR(NZ:US) based on HCUP distribution§ | RCFR(NZ:US) based on 20 state HDD¶ | ||
|---|---|---|---|---|---|
| RCFR(NZ:US) | 95% CI | ||||
| *Fatal and non-fatal hospitalized injuries with maximum Abbreviated Injury Scale score ⩾3. | |||||
| †Fatal and non-fatal hospitalized injuries, regardless of maximum AIS. | |||||
| ‡US hospitalized injury data from 1996–98 National Hospital Discharge Survey. | |||||
| §US hospitalized injury data based on cause and intent distribution in 2000 US Health Cost and Utilization Project (HCUP) Nationwide Inpatient Sample database. | |||||
| ¶US hospitalized injury data based on 1997 hospital discharge data (HDD) from 20 states. | |||||
| RCFR(NZ:US) = ratio of case fatality rates in NZ v the US. | |||||
| Cut/pierce* | 1.86 | 1.56 | 2.17 | 1.57 | 1.56 |
| Unintentional | 4.15 | 2.32 | 5.97 | 2.82 | 1.91 |
| Intentional assault | 1.90 | 1.55 | 2.26 | 1.60 | 1.75 |
| Intentional self-harm | 0.99 | 0.49 | 1.49 | 1.33 | 1.05 |
| Fall* | 2.04 | 1.97 | 2.11 | 2.13 | 1.41 |
| Unintentional | 2.01 | 1.95 | 2.08 | 2.11 | 1.40 |
| Fire/burn* | 1.07 | 0.89 | 1.26 | 0.78 | 0.95 |
| Fire | 1.25 | 1.04 | 1.47 | 0.97 | 1.13 |
| Scald | 1.80 | 1.03 | 2.57 | 1.05 | 1.07 |
| Firearm* | 1.41 | 1.32 | 1.49 | 1.38 | 1.39 |
| Unintentional | 2.73 | 1.92 | 3.54 | 2.51 | 3.29 |
| Intentional assault | 1.56 | 1.42 | 1.71 | 1.64 | 1.60 |
| Intentional self-harm | 1.09 | 1.03 | 1.14 | 1.02 | 1.03 |
| Machinery* | 0.93 | 0.67 | 1.20 | 0.87 | 0.87 |
| Motor vehicle Traffic* | 1.44 | 1.38 | 1.51 | 1.40 | 1.46 |
| Motorcyclist | 1.31 | 1.06 | 1.57 | 1.70 | 0.84 |
| Occupant | 1.50 | 1.42 | 1.58 | 1.47 | 1.69 |
| Pedalcyclist | 1.42 | 0.95 | 1.89 | 1.46 | 1.53 |
| Pedestrian | 1.34 | 1.16 | 1.52 | 1.19 | 1.26 |
| Natural/environmental* | 0.57 | 0.41 | 0.74 | 0.61 | 0.48 |
| Pedal cyclist, non-MV* | 2.07 | 1.55 | 2.60 | 1.93 | 1.20 |
| Pedestrian, non-MV* | 1.23 | 0.82 | 1.65 | 0.99 | 1.00 |
| Struck by/against* | 2.79 | 2.43 | 3.16 | 2.28 | 2.24 |
| Unintentional | 1.97 | 1.63 | 2.31 | 1.55 | 1.47 |
| Intentional assault | 5.21 | 4.19 | 6.24 | 4.41 | 4.23 |
| Transport, other* | 1.65 | 1.40 | 1.90 | 1.79 | 1.26 |
| Drowning/submersion† | 0.95 | 0.80 | 1.10 | 0.89 | 0.88 |
| Unintentional | 0.95 | 0.79 | 1.12 | 0.87 | 0.89 |
| Poisoning† | 0.97 | 0.93 | 1.01 | 1.04 | 0.73 |
| Unintentional | 0.26 | 0.25 | 0.28 | 0.20 | 0.15 |
| Intentional self-harm | 1.89 | 1.77 | 2.01 | 2.50 | 2.16 |
| Undetermined | 0.73 | 0.62 | 0.84 | 1.15 | 0.44 |
| Suffocation† | 1.22 | 1.09 | 1.34 | 1.23 | 1.17 |
| Unintentional | 0.67 | 0.57 | 0.77 | 0.69 | 0.74 |
| Intentional self-harm | 1.11 | 0.98 | 1.24 | 1.07 | 1.10 |