Table 1 The main characteristics of trauma patients and hospitalizations

Characteristics of hospitalization

Total Hospitalizations, No. (%)

1707

1320(77.33)

387(22.67)

Age, mean(SD), mo

73.80(6.92)

73.98(6.97)

73.18(6.75)

0.1824

 65–69

628(36.79)

469(35.53)

159(41.09)

 70–74

368(21.56)

282(21.36)

86(22.22)

 75–79

293(17.16)

238(18.03)

55(14.21)

 80–84

279(16.34)

217(16.44)

62(16.02)

 85–89

114(6.68)

95(7.2)

19(4.91)

  ≥ 90

25(1.46)

19(1.44)

6(1.55)

Gender, No. (%)

0.4712

 Male

914(53.54)

713(54.02)

201(51.94)

 Female

793(46.46)

607(45.98)

186(48.06)

Medical Payment type, No. (%)

0.0793

 Basic Medical Insurance

861(50.44)

649(49.17)

212(54.78)

 Entire self-pay

489(28.65)

381(28.86)

108(27.91)

 Other

357(20.91)

290(21.97)

67(17.31)

Cause of injury, No. (%)

 < .0001

 Falls (W00-W19)

901(52.78)

699(52.95)

202(52.2)

 Transport accidents (V01-V99)

528(30.93)

425(32.2)

103(26.61)

 Exposure to inanimate mechanical forces (W20-W49)

53(3.1)

22(1.67)

31(8.01)

 Exposure to animate mechanical forces (W50-W64)

31(1.82)

29(2.2)

2(0.52)

 Other

194(11.36)

145(10.98)

49(12.66)

Type of injury, No. (%)

 < .0001

 Injuries to the head (S00-S09)

657(38.49)

577(43.71)

80(20.67)

 Injuries to the hip and thigh (S70-S79)

303(17.75)

199(15.08)

104(26.87)

 Injuries to the abdomen,lower back,lumbar spine and pelvis (S30-S39)

184(10.78)

154(11.67)

30(7.75)

 Injuries to the thorax (S20-S29)

179(10.49)

165(12.5)

14(3.62)

 Injuries to the knee and lower leg (S80-S89)

123(7.21)

68(5.15)

55(14.21)

 Other

261(15.29)

157(11.89)

104(26.87)

ISS, mean (SD)

10.46(6.93)

10.37(6.74)

10.80(7.55)

0.1787

ISS, No. (%)

  < 16

1431(83.83)

1117(84.62)

314(81.14)

 16–24

228(13.36)

170(12.88)

58(14.99)

  ≥ 25

48(2.81)

33(2.5)

15(3.88)

Multimorbidity

0.3468

 no NCDs

441(25.83)

338(25.61)

103(26.61)

 one NCDs

479(28.06)

374(28.33)

105(27.13)

 two NCDs

436(25.54)

347(26.29)

89(23)

 three or more NCDs

351(20.56)

261(19.77)

90(23.26)

CCI, mean (SD), mo

3.83(1.62)

3.85(1.56)

3.76(1.82)

0.3288

  ≥ 3

1359(79.61)

1074(81.36)

285(73.64)

  < 3

348(20.39)

246(18.64)

102(26.36)

Characteristics of hospitalization

LOS mean (SD), d

15.49(16.97)

13.23(14.16)

23.20(22.59)

 < .0001

  ≤ 7

618(36.2)

543(41.14)

75(19.38)

 8–14

451(26.42)

379(28.71)

72(18.60)

 15–28

422(24.72)

279(21.14)

143(36.95)

  ≥ 29

216(12.65)

119(9.02)

97(25.06)

Mode of admission, No. (%)

0.0248

 Emergency admission

800(46.87)

638(48.33)

162(41.86)

 Outpatient admission

907(53.13)

682(51.67)

225(58.14)

Admission status, No. (%)

0.2048

 Critically ill status

45(2.64)

30(2.27)

15(3.88)

 Urgent status

204(11.95)

156(11.82)

48(12.40)

 General status

1458(85.41)

1134(85.91)

324(83.72)

Transferring to other departments

 < .0001

 No

1491(87.35)

1253(94.92)

238(61.50)

 Yes

216(12.65)

67(5.08)

149(38.50)

Intensive care

0.0057

 No

1645(96.37)

1281(97.05)

364(94.06)

 Yes

62(3.63)

39(2.95)

23(5.94)

Admission to ICU

 < .0001

 No

1580(92.56)

1292(97.88)

288(74.42)

 Yes

127(7.44)

28(2.12)

99(25.58)

Blood transfusion

 < .0001

 No

1557(91.21)

1284(97.27)

273(70.54)

 Yes

150(8.79)

36(2.73)

114(29.46)

Rescue

0.0298

 No

1544(90.45)

1205(91.29)

339(87.60)

 Yes

163(9.55)

115(8.71)

48(12.40)

Usage of the ventilator

 < .0001

 No

1552(90.92)

1270(96.21)

282(72.87)

 Yes

155(9.08)

50(3.79)

105(27.13)

In-hospital mortality

0.4451

 No

1643(96.25)

1268(96.06)

375(96.90)

 Yes

64(3.75)

52(3.94)

12(3.10)