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Table 2 Test performance criteria results by study participant characteristics

From: Evaluation of a novel algorithm for primary mass casualty triage by paramedics in a physician manned EMS system: a dummy based trial

  

Professional education (staffing)

Employment status

Previous mSTaRT training

 
 

Whole collective

Mobile intensive care units

Patient transport ambulance

Disaster response teams

Career teams

Volunteer teams

Yes

No

MSTaRT [[14]]

(n = 780)

(n = 420)

(n = 40)

(n = 100)

(n = 480)

(n = 140)

(n = 220)

(n = 160)

 

Test performance criteria

Correct triage

83.9%

85.2%

90.0%

88.0%

84.3%

87.9%

88.6%

83.8%

84.8%

(81.3 – 86.5)

(81.8 - 88.6)

(81.8 - 100.0)

(81.6 - 93.8)

(81.1 – 87.3)

(82.1 - 93.1)

(84.2 - 92.8)

(77.9 - 89.3)

(78.7 - 91.0)

Sensitivity

87.4%

89.2%

100.0%

90.0%

88.3%

91.3%

93.8%

86.8%

88.2%

(83.7 – 90.9)

(84.7 - 93.6)

 

(81.0 - 97.9)

(83.6 – 92.5)

(84.5 - 97.2)

(88.5 - 97.8)

(78.7 - 93.9)

(73.4 - 95.3)

Specificity

91.0%

89.6%

92.3%

95.6%

90.2%

95.4%

90.7%

93.6%

93.9%

(88.1 – 93.8)

(85.0 - 93.6)

(81.0 - 100.0)

(88.6 - 100.0)

(86.1 - 93.6)

(89.9 - 100.0)

(85.1 - 95.7)

(87.7 - 98.7)

(87.3 - 97.2)

LR +

9.7

8.6

13.0

19.1

9.01

19.8

10.1

13.6

14.5

LR -

0.139

0.121

0.000

0.105

0.130

0.091

0.068

0.141

0.126

Over-triage

6.4%

6.9%

7.5%

6.0%

6.3%

6.4%

6.8%

6.3%

8.3%

(4.9 – 8.1)

(4.9 - 8.1)

(0.0 - 16.7)

(1.9 - 10.9)

(4.3 – 8.6)

(2.9 - 10.6)

(3.9 - 10.2)

(2.7 - 10.6)

(3.6 - 13.0)

Critical over-triage

4.4%

4.4%

5.0%

2.0%

4.8%

2.1%

4.5%

3.1%

5.3%

(3.0 – 5.8)

(3.0 - 5.8)

(0.0 - 13.5)

(0.0 - 5.1)

(3.0 – 6.8)

(0.0 - 4.8)

(2.2 - 7.5)

(0.6 -6.2)

(1.5 - 9.1)

Under-triage

9.7%

9.7%

2.5%

6.0%

9.4%

5.7%

4.5%*

10.0%*

6.8%

(7.7 – 11.8)

(7.7 - 11.8)

(0.0 - 8.3)

(1.9 - 10.7)

(6.9 – 12.2)

(2.2 - 10.1)

(2.0 - 7.5)

(5.6 - 14.9)

(2.5 - 11.1)

Critical under-triage

4.8%

4.8%

0.0%

5.0

4.2%

2.1%

2.7%

6.3%

3.0%

(3.3 – 6.3)

(3.0 - 4.8)

 

(1.0 - 9.4)

(2.4 – 6.2)

(1.4 - 7.9)

(0.9 - 5.0)

(2.9 - 10.1)

(0.1 - 6.0)

Bleeding control

93.1%

92.4%

82.5%

93.0%

90.8%

92.1%

89.5%†

93.8%†

-

(91.3 - 94.7)

(89.7 - 94.8)

(69.4 - 93.8)

(87.4 - 97.6)

(88.0 - 93.3)

(87.3 - 96.1)

(85.1 - 93.1)

(89.7 - 97.4)

 

Airway opening

90.0%

82.9%

85.0%

84.0%

82.4%

83.6%

80.0%

83.1%

-

(87.9 - 92.1)

(79.4 - 86.3)

(72.7 - 95.6)

(76.5 - 90.9)

(79.0 - 85.5)

(77.3 - 89.4)

(74.4 - 85.2)

(77.3 - 89.0)

 
  1. Values in parenthesis represent the 95% confidence interval. *,†: P < 0.05 (ANOVA).