Table 1 Characteristics of the subjects (N = 105).

From: Transition of EMS workflow from radio to bell signals to shorten activation time in multiple casualty incident

Feature

Bell signal

(n = 53)

Radio signal

(n = 52)

P Value

Gender of all patients, N (%)

 

0.862

 Male

199 (52.1)

187 (51.2)

 

 Female

183 (47.9)

178 (48.8)

 

Age of all patients, Mean (SD), years

42.9 (5.6)

40.6 (4.9)

0.655

Type of MCI, N (%)

 

0.830

 Mass-transportation

39 (73.6)

38 (73.1)

 

 Outbreak infection

8 (15.1)

7 (13.5)

 

 Fires or natural disasters

5 (9.4)

4 (7.7)

 

 Crime scene

1 (1.9)

3 (5.7)

 

Operation Time, N (%)

 

0.752

 Morning (8 AM–4 PM)

22 (41.5)

19 (36.5)

 

 Afternoon (4 PM–12 AM)

20 (37.7)

25 (48.1)

 

 Night (12 AM–8 AM)

11 (20.8)

8 (15.4)

 

Equipment’s used in MCI, N (%)

 

0.720

 Binoculars

47 (88.7)

45 (86.5)

 

 Portable light

30 (56.6)

32 (61.5)

 

 Fire extinguisher

5 (9.4)

3 (5.8)

 

 Chemical protective clothing

1 (1.9)

1 (1.9)

 

 Mobile chemical decontamination

1 (1.9)

1 (1.9)

 

Number of casualties, Mean (SD)

7.2 (2.0)

7.0 (1.8)

0.920