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Table 1 Patients characteristics

From: Telephone triage and dispatch of ambulances to patients with suspected and verified acute stroke - a descriptive study

 

All patients

included

n = 1298

True positive patients

n = 201

False positive patients

n = 1037

False negative patients

n = 60

p =

Sex and age

Female n= (%)

688 (53)

99 (49)

560 (54)

29 (48)

0.354

Age median (25 and 75 percentiles)

75 (61–85)

78 (69–87)

74 (60–85)

79 (63–87)

< 0.001

EMCC priority

Acute priority n= (%)

1239 (6)

199 (99)

1008 (97)

32 (53)

< 0.001

Urgent priority n= (%)

57 (4)

2 (1)

29 (3)

26 (43)

< 0.001

Non-urgent priority n= (%)

2 (0.2)

0 (0)

0 (0)

2 (3)

< 0.001

Verified stroke diagnoses at discharge (n = 261)

     

Acute ischemic stroke (AIS) n= (%)

 

138 (68)

-

38 (63)

0.44

Intracerebral haemorrhage (ICH) n= (%)

 

25 (12)

-

15 (25)

0.02

Transient ischemic attack (TIA) n= (%)

 

38 (18)

-

7 (11)

0.19

Verified non-stroke diagnoses at discharge (n = 286)

     

Diseases of the nervous system

(G00– G99) n= (%)

 

-

51 (5)

-

NA

Cerebrovascular diseases (except stroke)

(I60-I69) n= (%)

 

-

19 (2)

-

NA

Other symptoms and signs involving the nervous and musculoskeletal systems (R298) n= (%)

 

-

15 (2)

-

NA

Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) n= (%)

 

-

21 (2)

-

NA

Symptoms and signs involving speech and voice (R47-R49) n= (%)

 

-

9 (0.9)

-

NA

Other non-stroke diagnoses

n= (%)

 

-

171 (17)

-

NA

  1. Age is presented as median with 25- and 75 percentiles. All other values are presented in numbers and (%). Proportions (%) are derived from the total number of true positive, false positive and false negative stroke patients. Groups were compared using Kruskal-Wallis Test. P-values of < 0.05 were considered statistically significant