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Table 1 Baseline characteristics of the derivation and validation cohorts

From: Identification of acute myocardial infarction in patients with atrial fibrillation and chest pain with a contemporary sensitive troponin I assay

  Derivation Cohort Validation Cohort
n=90 n=314
  n Value n Value
Nr. of patients (n)   90   314
Male gender n (%) 90 62 (69) 314 203 (65)
Age, mean (SD), years   72 (11)   66 (11)
Cardiovascular risk factors     
Hypertension, n (%) 89 69 (78) 314 255 (81)
Dyslipidemia, n (%) 89 31 (35) 314 232 (74)
Diabetes mellitus, n (%) 89 23 (26) 314 64 (20)
Active smoker, n (%) 89 17 (19) 314 53 (17)
Obesity, n (%) 87 21 (24) 291 82 (28)
Family history, n (%) 89 6 (7) 314 95 (30)
Laboratory parameters on admission     
Troponin I, median (IQR), ng/mL 90 0.95 (0.03, 2.9) 311 0.01 (0.01, 0.03)
Troponin I > 99th percentile, n (%) 90 67 (74) 311 74 (24)
eGFRMDRD, mean (SD), ml/min 86 73 (25) 314 77 (22)
Clinical variables     
Systolic Blood Pressure, mean (SD), mmHg 86 133 (31) 310 144 (24)
Heart rate, mean (SD), bpm 89 84 (32) 310 77 (19)
Chest pain onset time, median (IQR), h   8.6 (2.9 15.5)   4.3 (2.0, 13.2)
Final diagnosis AMI type 1, n (%) 90 75 (83) 314 63 (20)
  1. Data presented as number with percentage, mean with standard deviation (SD), or median with interquartile range (IQR) as appropriate. Obesity is defined as body mass index above 30 kg/m2. eGFRMDRD denotes estimated glomerular filtration rate using the abbreviated modification of diet in renal disease formula