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Table 2 Diagnostic performance of cardiac risk factors in percent (95% CI) for ACS within 30 days

From: Diagnostic values of chest pain history, ECG, troponin and clinical gestalt in patients with chest pain and potential acute coronary syndrome assessed in the emergency department

 

Sensitivity

Specificity

LR+

LR-

Age (years)

    

<40

0.3 (0.0-3.2)

82 (80–85)

0.02 (0.00-0.31)

1.2 (1.2- 1.2)

40-65

34 (27–42)

58 (55–61)

0.8 (0.6-1.0)

1.1 (1.0-1.3)

>65

66 (58–73)

60 (57–63)

1.6 (1.4-1.9)

0.6 (0.5-0.7)

>80

25 (19–33)

86 (84–88)

1.8 (1.3-2.5)

0.9 (0.8-1.0)

Risk factors

    

Known PAD

4 (2–9)

98 (97–99)

2.0 (0.8-5.1)

1.0 (0.9-1.0)

Diabetes

29 (23–37)

88 (85–89)

2.4 (1.8-3.2)

0.8 (0.7- 0.9)

Previous stroke

16 (11–23)

92 (90–94)

2.1 (1.4-3.2)

0.9 (0.8-1.0)

Known CAD

51 (43–59)

74 (71–76)

2.0 (1.6-2.4)

0.7 (0.6-0.8)

Known heart failure

9 (5–15)

90 (88–91)

0.9 (0.5-1.5)

1.0 (1.0-1.1)

Male gender

75 (67–81)

47 (44–50)

1.4 (1.3-1.6)

0.5 (0.4- 0.7)

  1. LR, Likelihood ratio; PAD, peripheral artery disease; CAD, Coronary artery disease.