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Table 1 Baseline characteristics of consultation calls to HEMS physicians

From: Advising and limiting medical treatment during phone consultation: a prospective multicentre study in HEMS settings

Consultation calls for EMS patients, data from medical recordsa

No LOMT

Pre-existing LOMT

New LOMT

Dual LOMT

N = 5632

%

N = 268

%

N = 165

%

N = 45

%

P

Time of the call

        

0.001

Day (8 a.m.–4 p.m.)

2214

39

116

43

87

53

21

47

 

Evening (4 p.m.–12 p.m.)

2172

39

104

39

44

27

10

22

 

Night (12 p.m.–8 a.m.)

1246

22

48

18

34

21

14

31

 

Reason for consultation

        

 < 0.001

Treatment instructions

3353

60

178

66

106

64

34

76

 

Destination of further admission

802

14

43

16

8

4.8

4

8.9

 

Pain medicine

481

8.5

10

3.7

0

 

0

  

ECG interpretation

416

7.4

10

3.7

0

 

0

  

Non-conveyance

356

3.6

12

4.5

1

0.6

1

2.2

 

End of resuscitation attempt

157

2.8

12

4.5

47

29

3

6.7

 

Other

67

1.2

3

1.1

3

1.8

3

6.7

 

Dispatch codeb

        

 < 0.001

Arrythmia

1169

21

51

19

12

7.3

9

20

 

Chest pain

1080

19

29

11

2

1.2

2

4.4

 

Dyspnea

546

9.7

76

28

33

20

11

24

 

Falling (not dropping)

306

5.4

6

2.2

3

1.8

1

2.2

 

Stomach pain

274

4.9

6

2.2

2

1.2

1

2.2

 

Cardiac arrest

262

4.7

11

4.1

66

40

5

11

 

Convulsions

250

4.4

14

5.2

2

1.2

4

8.9

 

Stroke

228

4

18

6.7

5

3

1

2.2

 

Unconsciousness

184

3.3

23

8.6

27

16

9

20

 

Other illness

178

3.2

21

7.8

1

0.6

0

  

Gender

        

 < 0.001

Male

2870

51

106

40

83

50

20

44

 

Female

2497

44

155

58

67

41

25

56

 

Missing data

265

4.7

7

2.6

15

9.1

0

  

Age Median (Q1–Q3)

67

(48–79)

84

(75–90)

80

(70–89)

85

(78–92)

 < 0.001

Children under 18 years

412

7.3

2

0.7

0

 

0

 

 < 0.001

Location of the patient

        

 < 0.001

Home/public/work

5078

90

95

35

96

58

11

24

 

Nursing home

282

5

150

56

50

30

23

51

 

Primary health care facility

188

3.3

18

6.7

13

7.9

8

18

 

Hospital

66

1.2

4

1.5

6

3.6

3

6.7

 

Other

18

0.3

1

0.4

0

 

0

  

Anamnesisc

         

Previously healthy

651

12

0

 

3

1.8

  

 < 0.001

DNACPR/Advance directive

41

0.7

150

56

0

 

29

64

 < 0.001

Hypertension

1125

20

71

27

41

25

16

36

0.002

Coronary artery disease

730

13

57

21

22

13

5

11

0.002

Diabetes

617

11

38

14

16

9.7

3

6.7

0.271

Atrial fibrillation (chronic)

501

8.9

57

21

22

13

8

18

 < 0.001

Asthma/COPD

445

7.9

37

14

15

9.1

5

11

0.006

Cardiac insufficiency

302

5.4

56

21

20

12

11

24

 < 0.001

Dementia

211

3.7

65

24

32

19

11

24

 < 0.001

Substance abuse

175

3.1

0

 

6

3.6

0

 

0.002

TIA/stroke

155

2.8

24

9

11

6.7

7

16

 < 0.001

Mental health disorder

133

2.4

4

1.5

5

3

3

6.7

0.168

Epilepsy

124

2.2

11

4.1

4

2.4

0

 

0.200

Another diagnosed illness

987

18

86

32

32

19

10

22

 < 0.001

  1. HEMS, Helicopter Emergency Medical Service, DNACPR, Do not attempt cardiopulmonary resuscitation, COPD, Chronic Obstructive Pulmonary Disease, TIA, Transient Ischaemic Attack
  2. a 5 consultation calls with LOMT excluded from analysis (Fig. 1)
  3. b Only the 10 most common codes out of the 50 codes observed during the study period are shown
  4. c The sums on patients with comorbidities exceed n = 6110 because many patients may have had several comorbidities
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Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

ISSN: 1757-7241