Table 1 Characteristics of the patients who visited the trauma centre during pre-COVID-19 and COVID-19 era

Age

58.3 ± 20.8

55.2 ± 21.5

 < 0.001

58.3 ± 20.5

0.900

Sex (male)

2464 (65.4)

3203 (64.5)

0.462

2454 (65.1)

0.828

SBP (mmHg)

136.5 ± 37.7

132.2 ± 39.3

 < 0.001

135.7 ± 36.8

0.351

DBP (mmHg)

77.2 ± 22.0

77.5 ± 23.7

0.629

77.5 ± 21.5

0.619

Pulse rate

82.7 ± 22.6

81.4 ± 24.3

0.011

82.6 ± 22.5

0.772

Body temperature (℃)

36.5 ± 2.9

36.4 ± 3.0

0.113

36.4 ± 2.5

0.491

GCS

13.7 ± 3.5

13.7 ± 3.7

0.591

13.6 ± 3.7

0.507

AIS (≥ 3)

 Head and neck

781 (20.7)

919 (18.5)

0.011

791 (21.0)

0.799

 Face

19 (0.5)

26 (0.5)

1.000

22 (0.6)

0.754

 Chest

658 (17.5)

751 (15.1)

0.004

671 (17.8)

0.717

 Abdomen

271 (7.2)

320 (6.5)

0.189

274 (7.3)

0.929

 Extremity and pelvic girdle

764 (20.3)

873 (17.6)

0.002

712 (18.9)

0.139

 External

15 (0.4)

30 (0.6)

0.235

21 (0.6)

0.404

ISS

10.6 ± 9.3

9.6 ± 8.7

 < 0.001

10.6 ± 9.1

0.941

Mechanism

 < 0.001

 < 0.001

 Motor vehicle collision

1326 (35.2)

1922 (38.8)

1480 (39.3)

 Slip down

759 (20.1)

958 (19.3)

747 (19.8)

 Falls

621 (16.5)

752 (15.2)

595 (15.8)

 Other blunt trauma

496 (13.2)

577 (11.6)

418 (11.1)

 Penetrating trauma

143 (3.8)

245 (4.9)

170 (4.5)

 Others

425 (11.3)

506 (10.2)

360 (9.5)

Intension of injury^a

0.922

0.426

 Non intentional

3399 (95.2)

4546 (95.4)

3467 (95.9)

 Suicide attempt

107 (3.0)

137 (2.9)

97 (2.7)

 Assault

63 (1.8)

81 (1.7)

57 (1.5)

Origin of the visit

0.702

0.172

 Transfer

1671 (44.3)

2220 (44.8)

1731 (45.9)

 Scene

2099 (55.7)

2740 (55.2)

2039 (54.1)

Transportation for visit

 < 0.001

0.119

 Ambulance

2925 (77.6)

3666 (73.9)

2859 (75.8)

 Helicopter

134 (3.6)

193 (3.9)

161 (4.3)

 Private vehicle and walking

711 (18.9)

1101 (22.2)

750 (19.9)