Characteristics | All patients | AO group | Non-AO group | P |
---|---|---|---|---|
No. of patients | 1054 | 199 (18.9%) | 855 (81.1%) | |
Age (years)a | 56.0 ± 15.7 | 57.9 ± 14.6 | 55.5 ± 15.9 | .05 |
Sex, maleb | 532 (50.5%) | 112 (56.3%) | 420 (49.1%) | .07 |
Comorbiditiesb | ||||
Malignancy | 365 (34.6%) | 96 (48.2%) | 269 (31.5%) | < .001 |
DM | 203 (9.3%) | 38 (19.1%) | 165 (19.3%) | .95 |
CAD | 95 (9.0%) | 22 (11.1%) | 73 (8.5%) | .26 |
CKD | 54 (5.1%) | 8 (4.0%) | 46 (5.4%) | .43 |
Asthma | 30 (2.8%) | 3 (1.5%) | 27 (3.2%) | .34 |
COPD | 25 (2.4%) | 8 (4.0%) | 17 (2.0%) | .09 |
Revisit timingb | .74 | |||
Early (≤ 72 h) | 546 (51.8%) | 101 (50.8%) | 445 (52.0%) | |
Late (72 h–7 days) | 508 (48.2%) | 98 (49.2%) | 410 (48.0%) | |
Diagnostic error status at index visitb | < .001 | |||
1. Radiologic errors | 121 (11.5%) | 51 (25.6%) | 70 (8.2%) | < .001 |
Misdiagnoses | 59 (5.6%) | 31 (15.6%) | 28 (3.3%) | < .001 |
D-RT | 62 (5.9%) | 20 (10.1%) | 42 (4.9%) | .006 |
2. Clinician errors | 110 (10.4%) | 26 (13.1%) | 84 (9.8%) | .18 |
3. Non-errors | 823 (78.1%) | 122 (61.3%) | 701 (82.0%) | < .001 |
Disease categories at index visitb | < .001 | |||
1. Neurologic diseases | 309 (29.3%) | 44 (22.1%) | 265 (31.0%) | .01 |
2. Digestive diseases | 159 (15.1%) | 45 (22.6%) | 114 (13.3%) | .001 |
3. Neoplasms | 150 (14.2%) | 51 (25.6%) | 99 (11.6%) | < .001 |
4. Traumatic injuries | 99 (9.4%) | 6 (3.0%) | 93 (10.9%) | < .001 |
5. Respiratory diseases | 50 (4.7%) | 10 (5.0%) | 40 (4.7%) | .84 |
6. Genitourinary diseases | 42 (4.0%) | 5 (2.5%) | 37 (4.3%) | .24 |
7. Infection | 38 (3.6%) | 5 (2.5%) | 33 (3.9%) | .36 |
8. Circulatory diseases | 29 (2.8%) | 13 (6.5%) | 16 (1.9%) | < .001 |
9. Healthcare-related complications | 17 (1.6%) | 6 (3.0%) | 11 (1.3%) | .08 |
10. Other diseases | 161 (15.3%) | 14 (7.0%) | 147 (17.2%) | < .001 |
(1) Mental or behavioral disorder | 27 (2.6%) | 2 (1.0%) | 25 (2.9%) | .14 |
(2) Musculoskeletal or connective tissue diseases | 15 (1.4%) | 5 (2.5%) | 10 (1.2%) | .15 |
(3) Visual and ear diseases | 15 (1.4%) | 2 (1.0%) | 13 (1.5%) | .75 |
(4) Endocrine or metabolic diseases | 12 (1.1%) | 2 (1.0%) | 10 (1.2%) | 1.0 |
(5) Hematologic diseases | 2 (0.2%) | 0 (0.0%) | 2 (0.2%) | 1.0 |
(6) Immune system diseases | 2 (0.2%) | 1 (0.5%) | 1 (0.1%) | .34 |
(7) Skin diseases | 2 (0.2%) | 0 (0.0%) | 2 (0.2%) | 1.0 |
(8) Non-diagnostic conditions | 86 (8.2%) | 2 (1.0%) | 84 (9.8%) | < .001 |
Patient disposition at revisitb | < .001 | |||
Admission | 530 (50.3%) | 171 (85.9%) | 359 (42.0%) | < .001 |
Discharge | 480 (45.5%) | 21 (10.6%) | 459 (53.7%) | < .001 |
Transfer | 42 (4.0%) | 5 (2.5%) | 37 (4.3%) | .24 |
Death in the ED | 2 (0.2%) | 2 (1.0%) | 0 (0.0%) | .04 |
Conditions of adverse outcomesb | ||||
Delayed operation | 103 (9.8%) | 103 (51.8%) | N/A | |
30-day in-hospital mortality | 69 (6.5%) | 69 (34.7%) | N/A | |
ICU admission | 61 (5.8%) | 61 (30.7%) | N/A |