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Table 1 Cohort characteristics by gender, age, triage, symptoms, use of CPSS

From: The use of Cincinnati prehospital stroke scale during telephone dispatch interview increases the accuracy in identifying stroke and transient ischemic attack symptoms

  

Stroke/TIA identification at dispatch

 

Total

True positive

False negative

False positive

Gender

N

N

%

N

%

N

%

  Female

11122

3419

54.6

1848

52.4

5855

48.9

  Male

8815

2674

42.7

1547

43.8

4594

38.4

  M.I.

1823

169

2.7

134

3.8

1520

12.7

Age

       

  <=45

2272

411

6.6

99

2.8

1762

14.7

  46-55

1225

256

4.1

172

4.9

797

6.7

  56-65

1730

529

8.4

286

8.1

915

7.6

  66-75

3247

1021

16.3

672

19.0

1554

13.0

  76-85

7187

2357

37.6

1384

39.2

3446

28.8

  +85

5094

1665

26.6

904

25.6

2525

21.1

  M.I.

1005

23

0.4

12

0.3

970

8.1

Triage

       

  Red

3304

783

12.5

540

15.3

1981

16.6

  Yellow

14010

3736

59.7

1564

44.3

8710

72.8

  Green

1252

265

4.2

135

3.8

852

7.1

  White

32

2

0.0

1

0.0

29

0.2

  Not assigned

3162

1476

23.6

1289

36.5

397

3.3

Symptoms collected at dispatch

       

  Unconscious

2301

739

11.8

452

12.8

1110

9.3

  Confusional state

3071

1410

22.5

662

18.8

999

8.3

  Not breathing

685

255

4.1

243

6.9

187

1.6

  Breathing/conscious

15703

3858

61.6

2172

61.5

9673

80.8

Use of CPSS at dispatch

       

  CPSS-yes

4976

3038

48.5

449

12.7

1489

12.4

  CPSS-no

16784

3224

51.5

3080

87.3

10480

87.6

Total

21760

6262

 

3529

 

11969

 
  1. CPSS - Cincinnati Prehospital Stroke Scale.