Table 1 General data sheet

Age(\(\overline{\mathrm{x}}\)±SD)

52.80 ± 10.79

51.10 ± 17.61

52.50 ± 12.51

0.909

Gender (female/male)

6/14

2/18

1/19

0.069

Smoking history (n,%)

3(5)

6(10)

4(6.7)

0.507

Drinking history (n,%)

2(3.3)

3(5)

5(8.3)

0.436

Hypertension (n,%)

2(3.3)

2(3.3)

3(5)

0.207

History of diabetes (n,%)

2(3.3)

1(1.7)

3(5)

0.561

History of coronary disease (n,%)

2(3.3)

0(0)

1(1.7)

0.237

Length of stay (\(\overline{\mathrm{x}}\)±SD)

14.10 ± 6.05

12.85 ± 4.67

12.20 ± 4.18

0.483

APACHE II(\(\overline{\mathrm{x}}\)±SD)

9.35 ± 4.53

9.65 ± 5.24

9.20 ± 2.98

0.946

Days in bed from injury to pre-intervention(\(\overline{\mathrm{x}}\)±SD)

3.18 ± 0.75

2.92 ± 1.25

3.54 ± 1.32

0.231

Days of intervention(\(\overline{\mathrm{x}}\)±SD)

12.58 ± 4.27

11.41 ± 2.23

11.19 ± 3.28

0.379

Mechanical ventilation (n,%)

4(6.7)

3(5)

3(5)

0.265

Days under mechanical ventilation(\(\overline{\mathrm{x}}\)±SD)

9.00 ± 1.41

10.67 ± 1.53

8.67 ± 1.53

0.711

Operation (n,%)

18(30)

14(23.3)

19(31.7)

0.069

Blood transfusion (n,%)

9(15)

10(16.7)

7(11.7)

0.619

Mechanical ventilation (n,%)

6(10)

6(10)

3(5)

0.427

Anticoagulant use (n,%)

15(25)

16(26.7)

14(23.3)

0.765

Corticosteroid therapy (n,%)

5(8.3)

4(6.7)

8(13.3)

0.350

Use sedatives (n,%)

8(13.3)

6(10)

7(11.7)

0.803

Days of sedative use(\(\overline{\mathrm{x}}\)±SD)

8.75 ± 2.36

8.17 ± 2.04

8.71 ± 12.43

0.879

Days without sedatives^a(\(\overline{\mathrm{x}}\)±SD)

4.25 ± 1.67

3.67 ± 1.63

3.29 ± 1.11

0.468

Type of diseases

 Multiple injuries (n,%)

16(26.7)

18(30)

20(33.3)

0.108

  Pelvic fracture

9(15)

7(11.7)

16(26.7)

  Thoracolumbar fracture

7(11.7)

6(10)

1(1.7)

  Multiple rib fractures

3(5)

5(8.3)

10(16.7)

  Hemorrhagic shock

2(3.3)

2(3.3)

0(0)

  Lung infection

2(3.3)

3(5)

3(5)

 Others (n,%)

4(6.7)

2(3.3)

0(0)

Bilateral lower limbs were intervened (n,%)

16 (26.7)

17 (28.3)

13 (21.7)

0.298

Unilateral lower limb was intervened (n,%)

4 (6.7)

3 (5)

7 (11.7)

The number of NMES sessions(\(\overline{\mathrm{x}}\)±SD)

22.55 ± 3.79

21.65 ± 2.78

21.15 ± 3.07

0.389