Table 5. Multivariable regression analysis for length of stay in emergency departments (minutes) for the study population.
| Variables | Phase 1 | Phase 2 | Phase 3 | Phase 4 | Phase 5 | |
|---|---|---|---|---|---|---|
| Crisis warning level | 1 & 2 | 3 | 4 | 4 | 4 | |
| Intervention | - | - | Before | Run-in | After | |
| Total | −18.1 (−19.2 to −17.1) | −12.3 (−13.5 to −11.2) | Ref. | 1.7 (0.52 to 2.9) | −5.3 (−6.5 to −4.2) | |
| Region | ||||||
| Daegu and Gyeongbuk | −36.4 (−42.8 to −30.0) | −17.1 (−23.9 to −10.3) | Ref. | 6.2 (−1.1 to 13.5) | 2.0 (−5.0 to 9.0) | |
| Other 15 provinces | −14.6 (−15.8 to −13.5) | −11.6 (−12.9 to −10.3) | Ref. | 1.9 (0.6 to 3.2) | −4.6 (−5.9 to −3.3) | |
| Clinically important diagnosis | ||||||
| Acute myocardial infarction | 2.0 (−21.9 to 25.9) | −17.5 (−41.7 to 6.6) | Ref. | 19.2 (−5.9 to 44.2) | 45.8 (21.3 to 70.2) | |
| Ischemic stroke | −19.9 (−34.5 to −5.2) | −36.2 (−51.1 to −21.2) | Ref. | 15.6 (0.3 to 30.9) | 27.3 (12.4 to 42.2) | |
| Hemorrhagic stroke | −30.8 (−53.9 to −7.5) | −26.6 (−50.0 to −3.2) | Ref. | 20.8 (−3.1 to 44.7) | 28.5 (4.7 to 52.3) | |
| Severe trauma | −18.0 (−23.3 to −12.7) | −20.4 (−25.8 to −14.9) | Ref. | 3.1 (−2.4 to 8.7) | −5.7 (−11.0 to −0.3) | |
Data are presented as β coefficients (95% CI).
Beta coefficients were adjusted for age and gender.
CI = confidence interval.