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Table 2 Initial diagnosis validity for each factor

From: Validity and risk factor analysis for helicopter emergency medical services in Japan: a pilot study

 

Ordered

 

Needs emergency intervention

Needs hospital admission

Validity of the suggested diagnosis

Total cases

 

451

235

300

261

Only emergency call

(%)

 

52.10643016

66.51884701

57.8713969

Cardiovascular

 

222

102

137

124

%

  

45.94594595

61.71171171

55.85585586

Stroke

 

135

82

98

74

%

  

60.74074074

72.59259259

54.81481481

CPA

 

54

41

44

43

%

  

75.92592593

81.48148148

79.62962963

Other diseases

 

40

10

21

20

%

  

25

52.5

50

Toal Cases

 

376

235

300

261

After first assesment by an EMT

 (%)

 

62.5

79.78723404

69.41489362

 Cardiovasclular

 

195

102

137

124

%

  

52.30769231

70.25641026

63.58974359

Stroke

 

108

83

99

75

%

  

76.85185185

91.66666667

69.44444444

 CPA

 

 45

41

44

43

 %

  

91.11111111

97.77777778

95.55555556

 Other diseases

 

 28

10

21

20

 %

  

35.71428571

75

71.42857143

  1. Note: EMT emergency medical technician; CPA cardiopulmonary arrest