Readmission and revisit analysis showing chief complaints with more than 150 index contacts, ranked by 30-day readmission (primary outcome)
| Chief complaint* | Included† | 7-day ED revisit | 7-day | 30-day ED revisit | 30-day | ||||||
| Readmission | Adjusted OR‡ | Readmission | Adjusted OR‡ | ||||||||
| n (%) | % | % | 95% CI | OR | 95% CI | % | % | 95% CI | OR | 95% CI | |
| All | 14 839 (100) | 3.2 | 3.3 | 3.0 to 3.6 | – | – | 6.4 | 6.5 | 6.1 to 6.9 | – | – |
| Fever/infection | 664 (4.5) | 3.0 | 5.6 | 4.0 to 7.6 | 1.7 | 1.2 to 2.5 | 5.4 | 11.7 | 9.4 to 14.4 | 1.9 | 1.4 to 2.4 |
| Dyspnea | 1096 (7.4) | 2.1 | 4.8 | 3.6 to 6.3 | 1.5 | 1.1 to 2.0 | 6.0 | 11.2 | 9.4 to 13.2 | 1.7 | 1.4 to 2.0 |
| Nausea, vomiting and diarrhea | 176 (1.2) | 1.7 | 4.0 | 1.6 to 8.0 | 1.2 | 0.6 to 2.6 | 3.4 | 10.8 | 6.6 to 16.3 | 1.6 | 1.0 to 2.7 |
| Abdominal symptoms | 1484 (10.0) | 1.1 | 6.3 | 5.1 to 7.6 | 2.4 | 1.9 to 3.0 | 3.6 | 10.2 | 8.7 to 11.8 | 2.0 | 1.7 to 2.4 |
| Skin and mucosal symptoms | 170 (1.2) | 5.9 | 8.2 | 4.6 to 13.4 | 2.8 | 1.6 to 4.8 | 10.6 | 10.0 | 5.9 to 15.5 | 1.8 | 1.1 to 2.9 |
| Gastrointestinal bleeding | 415 (2.8) | 2.4 | 3.4 | 1.9 to 5.6 | 1.0 | 0.6 to 1.7 | 7.2 | 9.6 | 7.0 to 12.9 | 1.4 | 1.0 to 1.9 |
| Unwell | 257 (1.7) | 2.7 | 1.9 | 0.6 to 4.5 | 0.6 | 0.2 to 1.4 | 7.8 | 7.0 | 4.2 to 10.8 | 1.0 | 0.6 to 1.6 |
| Extremity symptoms without injury | 471 (3.2) | 4.5 | 3.8 | 2.3 to 6.0 | 1.2 | 0.7 to 1.9 | 8.7 | 6.8 | 4.7 to 9.5 | 1.0 | 0.7 to 1.5 |
| Altered level of consciousness | 317 (2.1) | 4.4 | 2.5 | 1.1 to 4.9 | 0.7 | 0.4 to 1.5 | 8.8 | 6.6 | 4.1 to 9.9 | 0.9 | 0.6 to 1.4 |
| No contact reason | 947 (6.4) | 5.1 | 3.9 | 2.8 to 5.3 | 1.2 | 0.9 to 1.7 | 7.6 | 6.4 | 5.0 to 8.2 | 1.0 | 0.7 to 1.3 |
| Nose symptoms | 184 (1.2) | 9.2 | 3.8 | 1.5 to 7.7 | 1.1 | 0.5 to 2.3 | 12.0 | 6.0 | 3.0 to 10.4 | 0.8 | 0.4 to 1.4 |
| Chest pain | 856 (5.8) | 1.7 | 2.7 | 1.7 to 4.0 | 0.8 | 0.5 to 1.2 | 4.6 | 5.4 | 4.0 to 7.1 | 0.8 | 0.6 to 1.1 |
| Focal neurological symptoms | 268 (1.8) | 2.2 | 2.6 | 1.1 to 5.3 | 0.8 | 0.4 to 1.6 | 4.5 | 5.2 | 2.9 to 8.6 | 0.7 | 0.4 to 1.2 |
| Headache | 401 (2.7) | 1.7 | 3.5 | 1.9 to 5.8 | 1.1 | 0.7 to 1.9 | 3.5 | 5.0 | 3.0 to 7.6 | 0.9 | 0.5 to 1.3 |
| Extremity injury | 1760 (11.9) | 6.0 | 2.5 | 1.8 to 3.3 | 0.7 | 0.5 to 1.0 | 1.1 | 4.7 | 3.7 to 5.8 | 0.6 | 0.5 to 0.8 |
| Thorax injury | 192 (1.3) | 6.3 | 2.1 | 0.6 to 5.2 | 0.6 | 0.2 to 1.7 | 10.4 | 4.7 | 2.2 to 8.7 | 0.8 | 0.4 to 1.5 |
| Dizziness | 400 (2.7) | 0.5 | 2.3 | 1.0 to 4.2 | 0.6 | 0.3 to 1.2 | 3.3 | 4.3 | 2.5 to 6.7 | 0.6 | 0.3 to 0.9 |
| Intoxication | 524 (3.5) | 2.8 | 1.3 | 0.5 to 2.7 | 0.4 | 0.2 to 0.9 | 6.9 | 3.4 | 2.0 to 5.4 | 0.7 | 0.4 to 1.1 |
| Back and neck pain | 813 (5.5) | 3.6 | 1.0 | 0.4 to 1.9 | 0.3 | 0.1 to 0.6 | 5.7 | 3.3 | 2.2 to 4.8 | 0.5 | 0.4 to 0.8 |
| Seizure, generalized | 306 (2.1) | 4.6 | 1.3 | 0.4 to 3.3 | 0.4 | 0.1 to 1.1 | 8.5 | 2.6 | 1.1 to 5.1 | 0.4 | 0.2 to 0.8 |
| Fainting/syncope | 412 (2.8) | 2.1 | 1.2 | 0.4 to 2.8 | 0.4 | 0.1 to 0.9 | 4.3 | 2.2 | 1.0 to 4.1 | 0.3 | 0.2 to 0.6 |
| Head and face symptoms | 1154 (7.8) | 3.6 | 1.2 | 0.7 to 2.0 | 0.3 | 0.2 to 0.6 | 6.5 | 2.2 | 1.4 to 3.2 | 0.3 | 0.2 to 0.5 |
| Allergic symptoms | 216 (1.5) | 1.9 | 0.5 | 0.0 to 2.6 | 0.1 | 0.0 to 1.0 | 2.3 | 1.9 | 0.5 to 4.7 | 0.3 | 0.1 to 0.9 |
| The rest | 1356 (9.1) | 1.8 | 4.1 | 3.1 to 5.2 | 1.3 | 1.0 to 1.7 | 4.4 | 8.7 | 7.3 to 10.3 | 1.5 | 1.2 to 1.8 |
The OR for each chief complaint is calculated using the remaining study population as reference.
For table showing crude OR, see online supplemental file 1.
*Only chief complaints with more than 150 index visitors are shown. The remaining chief complaints are grouped as “the rest.”
†All domestic index contacts not dying in-hospital included (n=14 839). 317 foreigners and 213 dying in-hospital excluded.
‡Adjusted for age and gender.
ED, emergency department; n, number of entries.