Table 1:

Characteristics of the 2 study cohorts

CharacteristicNo. (%) of patients*
Cohort 1
n = 1058
Cohort 2
n = 5974
Age, yr, mean ± SD67 ± 1768 ± 17
Female sex558 (52.7)3025 (50.6)
Hypertension744 (70.3)4045 (67.7)
Diabetes mellitus312 (29.4)1961 (32.8)
History of myocardial infarction378 (35.7)674 (11.3)
History of PCI or CABG236 (22.3)453 (7.6)
History of peripheral vascular disease75 (7.1)742 (12.4)
Glucose concentration, mmol/L, mean ± SD7.4 ± 3.67.6 ± 4.4
eGFR, mL/min per 1.73 m2, mean ± SD72 ± 2769 ± 27
hs-cTnI concentration at presentation < 99th percentile cut-off842 (79.6)4698 (78.6)
30-day MACE205 (19.4)871(14.6)
  • Note: CABG = coronary artery bypass grafting, eGFR = estimated glomerular filtration rate, hs-cTNI = high-sensitivity cardiac troponin I, MACE = major adverse cardiac event, PCI = percutaneous coronary intervention, SD = standard deviation.

  • * Unless indicated otherwise.

  • 99th percentile upper reference limit is 11 ng/L for Ortho hs-cTnI assay and 26 ng/L for Abbott hs-cTnI assay.