Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Models selected in trauma data.
| Complete records | Stack | ΔWald | |
|---|---|---|---|
| Age (years) | −2 | 0.5, 1 | 1, 1 |
| Sex† | — | 1 | 1 |
| Injury type† (blunt/penetrating) | 1 | 1 | 1 |
| Time to emergency dept. (minutes) | 1 | 1 | 1 |
| Systolic blood pressure (mm Hg) | 1 | 1 | −2, 0.5 |
| Base deficit (mM) | 1 | −1 | −0.5 |
| Prothrombin time (seconds) | −0.5, −0.5 | −0.5, −0.5 | −0.5, −0.5 |
The numbers give the exponents selected for each variable in the final model.
For binary variables, an exponent of 1 indicates inclusion in the final model.
