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Table 4 Diagnostic performances of chest pain history in percent (95% CI) in patients with non-ischemic ECG* and normal initial troponin T

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-

Chest pain history

    

Typical of ACS

32 (25–39)

83 (81–86)

1.9 (1.4-2.5)

0.8 (0.7-0.9)

Typical of AMI±

11 (6–19)

93 (91–94)

1.6 (0.9-3.0)

1.0 (0.9-1.0)

Typical of UA≠

45 (32–59)

90 (89–92)

4.7 (3.3-6.7)

0.6 (0.5-0.8)

Nonspecific for ACS

6 (3–11)

64 (61–67)

0.2 (0.1-0.3)

1.5 (1.4-1.6)

Not suspicious of ACS

0.3 (0–3)

60 (57–63)

0.01 (0.00-0.13)

1.7 (1.6-1.8)

  1. LR, likelihood ratio; ACS, Acute coronary syndrome; AMI, Acute myocardial infarction; UA, Unstable angina pectoris.
  2. *Normal ECG defined as the absence of ST-elevation, ST-depression, T-wave inversion, q-waves and LBBB.
  3. ± Calculated with AMI as outcome measure.
  4. ≠ Calculated with UA as outcome measure.
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