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Table 1 Background characteristics

From: Unrecognized myocardial infarctions assessed by cardiovascular magnetic resonance are associated with the severity of the stenosis in the supplying coronary artery

  No UMI (n = 177) UMI (n = 58) P-value
Age at inclusion, years 64.2 ± 8.8 66.6 ± 8.2 0.07
Women (%) 66 (37 %) 14 (24 %) 0.08
Current smoker (%) 16 (9 %) 6 (10 %) 0.80
Previous smoker (%) 89 (50 %) 32 (55 %) 0.55
Family history of IHD (%) 87 (49 %) 30 (52 %) 0.76
Hypertension (%) 94 (53 %) 38 (66 %) 0.13
Diabetes mellitus (%) 32 (18 %) 17 (29 %) 0.09
Previous stroke/TIA (%) 7 (4.0 %) 6 (10 %) 0.09
PVD (%) 6 (3.4 %) 6 (10 %) 0.08
COPD (%) 13 (7.3 %) 3 (5.2 %) 0.77
BMI 27.3 ± 3.5 27.7 ± 4.0 0.49
Waist circumference, cm 99.1 ± 10.0 101.8 ± 11.7 0.55
Systolic BP, mmHg 139 ± 17 143 ± 19 0.22
Diastolic BP, mmHg 79 ± 10 79 ± 10 0.96
Ejection fraction, % median (IQR) 66 (61–71) 67 (62–72) 0.55
Symptoms of angina pectoris
 <2 months (%) 6 (3 %) 1 (2 %) 0.75
 2-12 months (%) 80 (45 %) 25 (43 %)  
 >12 months (%) 91 (51 %) 32 (55 %)  
Medications
 Aspirin (%) 158 (89 %) 53 (91 %) 0.81
 Clopidogrel (%) 4 (2 %) 3 (5 %) 0.37
 Statin/other lipid lowering agent (%) 121 (68 %) 46 (79 %) 0.13
  1. IHD Ischemic Heart Disease, TIA Transient Ischemic Attack, PVD Peripheral Vascular Disease, COPD Chronic Obstructive Pulmonary Disease, BMI Body Mass Index, BP Blood Pressure, IQR InterQuartileRange