Table 2 Results of the logistic regression analysis (dependent variable NIV usage)

Constant

2.86

1.98

1.44

0.15

Rhonchus

-0.54

0.39

1.4

0.16

0.58

0.27–1.24

Auscultation other

-1.48

0.79

1.86

0.06

0.23

0.05–1.08

Obstruction/gasping/apnea

-1.24

0.46

2.68

< 0.01*

0.29

0.12–0.72

Bronchial spasm

4.79

0.64

7.42

< 0.01*

119.75

33.85–423.57

Dyspnea/cyanosis

0.82

0.23

3.57

< 0.01*

2.28

1.45–3.58

Head mild

0.46

0.58

0.8

0.42

1.59

0.51–4.91

Head moderate

1.22

0.33

3.7

< 0.01*

3.37

1.77–6.42

Head severe

1.21

0.26

4.64

< 0.01*

3.37

2.01–5.62

Face mild

0.68

0.41

1.68

0.09

1.98

0.89–4.38

Face moderate

0.17

0.3

0.57

0.57

1.18

0.66–2.12

Face severe

-0.96

0.47

2.01

0.04*

0.38

0.15–0.98

Cervical spine mild

-2.05

0.92

2.24

0.02*

0.13

0.02–0.78

Cervical spine moderate

-0.71

0.56

1.29

0.20

0.49

0.16–1.45

Cervical spine severe

-0.98

1.05

0.93

0.35

0.38

0.05–2.94

Thoracic/lumbar spine mild

0.04

0.93

0.04

0.96

1.04

0.17–6.42

Thoracic/lumbar spine moderate

-1.21

0.61

1.97

0.05*

0.3

0.09–0.99

Thoracic/lumbar spine severe

-0.5

0.6

0.84

0.40

0.6

0.19–1.96

Thorax mild

0.06

0.63

0.09

0.93

1.06

0.31–3.65

Thorax moderate

0.14

0.31

0.45

0.65

1.15

0.63–2.1

Thorax severe

0.24

0.3

0.79

0.43

1.27

0.7–2.3

Abdomen mild

0.6

0.87

0.68

0.49

1.82

0.33–10.05

Abdomen moderate

0.19

0.51

0.37

0.71

1.21

0.45–3.27

Abdomen severe

0.37

0.35

1.05

0.30

1.44

0.73–2.87

Pelvis mild

0.84

0.79

1.07

0.29

2.32

0.49–10.9

Pelvis moderate

-0.72

0.59

1.23

0.22

0.49

0.15–1.53

Pelvis severe

0.68

0.33

2.04

0.04*

1.98

1.03–3.8

Soft parts mild

0.08

0.52

0.16

0.87

1.09

0.39–3.04

Soft parts moderate

-0.49

0.54

0.91

0.36

0.61

0.21–1.76

Soft parts severe

-0.58

0.68

0.85

0.4

0.56

0.15–2.14

Thoracic drainage

-0.36

0.35

1.02

0.31

0.7

0.35–1.39

PES 2

-0.01

0.24

0.03

0.97

0.99

0.62–1.6

PES 3

0.69

0.38

1.82

0.07

1.99

0.95–4.16

PES 4

0.2

0.87

0.23

0.81

1.22

0.22–6.71

Age

-0.02

0.01

3.11

< 0.01*

0.98

0.97–0.99

GCS

-0.01

0.02

0.64

0.52

0.99

0.94–1.03

Heart rate

0.01

0.01

0.86

0.40

1.01

0.99–1.03

Systolic blood pressure

-0.01

0.01

1.35

0.18

0.99

0.98–1

Respiratory rate

0.07

0.03

2.55

0.01*

1.07

1.02–1.13

Oxygen saturation

-0.03

0.01

1.9

0.06

0.97

0.95–1

Pain level

-0.11

0.04

3.2

< 0.01*

0.89

0.83–0.96

Shock index

-1.96

1.18

1.67

0.10

0.14

0.01–1.41