Table 1 Baseline characteristics of study sample

Total patients

N = 686

Sex, female^a

356 (51.9%)

Age (mean ± SD years)^b

55.3 ± 18

Categories of diagnostic errors^a

 Perception error

519 (75.7%)

 Misdiagnosis

167 (24.3%)

Categories of diseases^a

 Neoplasm

180 (26.2%)

 Digestive

150 (21.9%)

 Neurologic

102 (14.9%)

 Trauma

76 (11.1%)

 Genitourinary

36 (5.2%)

 Others

142 (20.7%)

Image findings^a

 Minor findings

142 (20.7%)

 Critical findings

544 (79.3%)

Inpatient management

147 (21.4%)

Adverse outcomes^a

41 (6.0%)

Conditions

 (1) Delayed operation

40 (5.8%)

 (2) 30-day in-hospital mortality

0 (0.0%)

 (3) ICU admission

1 (0.1%)

Examination^a

 CT abdomen and pelvis

328 (47.8%)

 CT head

131 (19.1%)

 CT vessel

65 (9.5%)

 CT chest

48 (7.0%)

 CT whole body trauma

20 (2.9%)

 CT neck

18 (2.6%)

 CT musculoskeletal

3 (0.4%)

 CT spines

1 (0.1%)

 MRI head

66 (9.6%)

 MRI spine

6 (0.9%)

Duty periods^a

 On-duty period

269 (39.2%)

 Off-duty period

417 (60.8%)

Time internal between preliminary and finalized reports^a

 Early finalized reports (≤ 9 h)

285 (41.5%)

 Late finalized reports (> 9 h)

401 (58.5%)