Logistic Regression Model of Factors Influencing Variation in the Proportion of Patients Treated by Observation at Level I Trauma Hospitals in Ontario
| Influencing factor | χ2 value | p value |
|---|---|---|
| Hospital | 128.1 | < 0.0001 |
| Multiple injuries ( 2) | 34.1 | < 0.0001 |
| Shock* | 8.79 | 0.003 |
| Age | 2.47 | 0.12 |
| Head injury (AIS > 2) | 2.90 | 0.09 |
| Glasgow coma scale score < 11 | 0.14 | 0.71 |
↵* Systolic blood pressure < 100 mm Hg
AIS = abbreviated injury score.