Table 3.
Summary of Multiple Linear Regression Model Estimating Log-transformed Waiting Time for Individual Non-emergency (Category III–V) Patients
| Explanatory Variable | Percent Change in Waiting Time on Non-emergent Patients |
|
|---|---|---|
| Percent Change (95% CI) | p-Value | |
| Age, years | ||
| ≤65 | Reference | |
| >65 | 0.1 (−0.9–1.2) | 0.810 |
| Mode of arrival | ||
| Walk-in | Reference | |
| Ambulance | −13.2 (−13.9 to −12.2) | <0.001 |
| Disposition status | ||
| Discharged | Reference | |
| Admitted | −5.3 (−6.4 to −4.2) | <0.001 |
| Triage category | ||
| III | Ref | |
| IV | 374.5 (369.4–379.7) | <0.001 |
| V | 529.5 (518.4–540.8) | <0.001 |
| Crowding factor | ||
| Number of all non-emergent patients waiting for triage | 4.6 (4.4–4.8) | <0.001 |
| Number of Category III patients waiting for consultation | 8.2 (7.9–8.4) | <0.001 |
| Number of Category IV patients waiting for consultation | 2.7 (2.6–2.7) | <0.001 |
| Number of Category V patients waiting for consultation | 0.9 (0.8–1.1) | <0.001 |
| Number of Category III patients in treatment | 1.0 (0.9–1.1) | <0.001 |
| Number of Category IV patients in treatment | 0.6 (0.6–0.7) | <0.001 |
| Number of Category V patients in treatment | −2.3 (−2.7 to −1.9) | <0.001 |
| Number of emergent patients | 14.9 (14.2–15.5) | <0.001 |
CI = confidence interval.