Table 3.
Multiple regression model predicting ED length of stay
| Chest Pain | Abdominal Pain | Non-Traumatic Bleeding | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| β | 95% CI for β | p-value | β | 95% CI for β | p-value | β | 95% CI for β | p-value | ||||
| Diagnostic Anticipation | −28.9 | −44.2 | −13.6 | < 0.001 | 6.1 | −8.4 | 20.7 | 0.41 | 17.2 | −8.9 | 43.4 | 0.20 |
| Age, 5-year increase* | 5.7 | 3.6 | 7.9 | < 0.001 | 2.4 | 0.7 | 4.1 | 0.006 | 3.2 | −0.2 | 6.6 | 0.066 |
| Male gender | −8.1 | −22.9 | 6.8 | 0.29 | −24.1 | −38.6 | −9.5 | 0.001 | 8.3 | −17.3 | 34.1 | 0.52 |
| NEDOCS score, 10-point increase* | 5.0 | 3.8 | 6.2 | < 0.001 | 7.0 | 5.8 | 8.2 | < 0.001 | 7.3 | 5.2 | 9.3 | < 0.001 |
| Imaging, 1 test increase* | 17.1 | 9.6 | 24.6 | < 0.001 | 28.2 | 21.2 | 35.2 | < 0.001 | 56.6 | 41.3 | 71.8 | 0.006 |
| Specialist consultations (vs no) | 69.2 | 46.8 | 91.6 | < 0.001 | 74.7 | 57.2 | 92.2 | < 0.001 | 43.4 | 12.8 | 73.9 | < 0.001 |
| Hospitalization (vs discharge) | 52.5 | 30.4 | 74.5 | < 0.001 | 126.0 | 106.8 | 145.2 | < 0.001 | 94.8 | 60.5 | 129.0 | < 0.001 |
| Yellow priority code (vs green) | 41.2 | 20.5 | 61.8 | < 0.001 | 50.6 | 35.1 | 66.2 | < 0.001 | 5.8 | −21.7 | 33.3 | 0.68 |
Abbreviations: NT = Non Traumatic; β = β coefficient; CI = Confidence Interval, DA = Diagnostic Anticipation; NEDOCS=National ED Overcrowding Study Score [15] at triage registration
*from the minimum value (0 for NEDOCS and Imaging Tests, 18 for Age)