Predictive factors for longer ED-LOS and EDOU-LOS (unadjusted analysis): ED interventions
| Factor | ED LOS | ED+OU LOS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <160 min | ≥160 min | OR (95% CI) | p Value* | <485 min | ≥485 min | OR (95% CI) | p Value* | |||||
| n | % | n | % | n | % | n | % | |||||
| Nurse score ≥2 (yes) | 23 116 | 35.1 | 42 704 | 64.8 | 3.64 (3.55 to 3.73) | <0.00001 | 20 265 | 31.2 | 44 607 | 68.7 | 5.47 (5.34 to 5.61) | <0.00001 |
| Medical score ≥1 (yes) | 15 225 | 28.6 | 38 079 | 71.4 | 3.38 (3.3 to 3.46) | <0.00001 | 17 864 | 33.1 | 36 051 | 66.9 | 4.99 (4.87 to 5.11) | <0.00001 |
| Total score ≥3 (yes) | 17 046 | 29.4 | 41 017 | 70.6 | 5.04 (4.92 to 5.17) | <0.00001 | 13 980 | 24.4 | 43 369 | 75.6 | 8.28 (8.07 to 8.5) | <0.00001 |
| Vital-sign monitoring (yes) | 1598 | 2.6 | 7740 | 12.3 | 5.37 (5.08 to 5.68) | <0.00001 | 933 | 1.5 | 8196 | 13.5 | 9.96 (9.3 to 10.7) | <0.00001 |
| Alarms (yes) | 3679 | 5.9 | 3086 | 4.9 | 0.83 (0.79 to 0.87) | <0.00001 | 3708 | 6.1 | 2618 | 4.3 | 0.69 (0.66 to 0.73) | <0.00001 |
| Haematological tests (yes) | 7057 | 11.3 | 29 992 | 47.8 | 7.21 (7.00 to 7.42) | <0.00001 | 3670 | 6.1 | 32 945 | 54.1 | 18.33 (17.7 to 19.00) | <0.00001 |
| Biochemical tests (yes) | 8581 | 13.7 | 31 663 | 50.4 | 6.41 (6.24 to 6.59) | <0.00001 | 5221 | 8.6 | 34 544 | 56.8 | 13.9 (13.5 to 14.4) | <0.00001 |
| Toxicology tests (yes) | 809 | 1.3 | 1625 | 2.6 | 2.69 (2.47 to 2.93) | <0.00001 | 326 | 0.5 | 2085 | 3.4 | 6.57 (5.83 to 7.40) | <0.00001 |
| Bacteriological–parasitological tests (yes) | 4027 | 6.4 | 15 260 | 24.3 | 4.68 (4.51 to 4.85) | <0.00001 | 2825 | 4.7 | 16 191 | 26.1 | 7.42 (7.12 to 7.74) | <0.00001 |
| Blood-group analyses (yes) | 706 | 21.5 | 2572 | 78.5 | 3.75 (3.44 to 4.08) | <0.00001 | 467 | 0.8 | 2765 | 4.5 | 6.14 (5.55 to 6.78) | <0.00001 |
| ECG (yes) | 8663 | 1.1 | 20 934 | 4.1 | 3.12 (3.03 to 3.21) | <0.00001 | 6051 | 10 | 23 143 | 38 | 5.54 (5.37 to 5.71) | <0.00001 |
| x Rays (yes) | 12 312 | 19.6 | 23 091 | 33.8 | 2.38 (2.32 to 2.44) | <0.00001 | 10 831 | 17.9 | 24 174 | 39.7 | 3.03 (2.95 to 3.11) | <0.00001 |
| CT/MRI/ultrasound (yes) | 2648 | 4.2 | 13 434 | 21.4 | 6.17 (5.91 to 6.45) | <0.00001 | 1146 | 1.9 | 14 749 | 24.2 | 16.6 (15.6 to 17.7) | <0.00001 |
| Blood transfusion (yes) | 91 | 0.2 | 217 | 0.4 | 2.39 (1.85 to 3.07) | <0.00001 | 21 | 0.03 | 281 | 0.5 | 13.4 (8.5 to 21.5) | <0.00001 |
| Oral treatment (yes) | 13 658 | 21.8 | 19 625 | 31.3 | 1.63 (1.59 to 1.67) | <0.00001 | 13 139 | 21.7 | 19 658 | 32.3 | 1.73 (1.68 to 1.77) | <0.00001 |
| Drug-aerosol inhalation (yes) | 678 | 1.1 | 1831 | 2.9 | 2.75 (2.51 to 3.01) | <0.00001 | 447 | 0.7 | 2031 | 3.3 | 4.65 (4.19 to 5.16) | <0.00001 |
| Electrolytes added to intravenous lines (yes) | 161 | 0.3 | 994 | 1.6 | 6.25 (5.27 to 7.41) | <0.00001 | 124 | 0.2 | 1012 | 1.7 | 8.26 (6.82 to 10.0) | <0.00001 |
| Intravenous line (yes) | 5304 | 8.5 | 21 309 | 33.9 | 5.56 (5.38 to 5.74) | <0.00001 | 2732 | 4.5 | 23 527 | 38.7 | 13.4 (12.8 to 13.9) | <0.00001 |
| Intravenous treatment (yes) | 5252 | 8.4 | 18 738 | 29.8 | 4.65 (4.5 to 4.81) | <0.00001 | 3668 | 6.1 | 19 976 | 32.8 | 7.59 (7.31 to 7.88) | <0.00001 |
| Other treatment (yes) | 391 | 0.6 | 2230 | 3.6 | 5.87 (5.26 to 6.55) | <0.00001 | 270 | 0.5 | 2262 | 3.7 | 8.63 (7.59 to 9.82) | <0.00001 |
| Splints, casts or plaster (yes) | 1985 | 3.2 | 2210 | 3.5 | 1.12 (1.05 to 1.19) | 0.0005 | 1903 | 3.1 | 2237 | 3.7 | 1.18 (1.11 to 1.25) | <0.00001 |
| Specialist advice (yes) | 5923 | 9.5 | 11 497 | 18.3 | 2.15 (2.08 to 2.22) | <0.00001 | 4547 | 7.5 | 12 644 | 20.8 | 3.24 (3.12 to 3.36) | <0.00001 |
| Bladder catheter or gastric tube (yes) | 444 | 0.7 | 1612 | 2.6 | 3.69 (3.32 to 4.11) | <0.00001 | 217 | 0.4 | 1808 | 3 | 8.53 (7.39 to 9.85) | <0.00001 |
Only data for ‘yes’ (vs ‘no’) category are presented.
*p Value for Fisher exact test.
ED, emergency department; LOS, length of stay; OU, observation unit.