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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.