Table 1

Baseline clinical characteristics according to the presence or absence of AF during the hospital course

CharacteristicsNo AF (n=1758)AF (n=162)p Value
Age (years)60±1269 ± 12<0.001
Female gender365 (21)50 (31)0.003
Previous infarction372 (21)43 (27)0.11
Hypertension873 (50)103 (64)0.001
Current smoking279 (16)37 (23)0.02
Diabetes497 (28)49 (30)0.59
Estimated GFR*87±3471±27<0.001
Killip class II–IV363 (21)69 (43)<0.001
Anterior infarction761 (43)79 (49)0.18
ST-elevation infarction1453 (83)122 (75)0.02
SBP on admission (mm Hg)116±43127±36<0.001
Heart rate on admission (bpm)77±1783±24<0.001
Medical therapy at admission
 Antiplatelet agents1710 (97)148 (91)<0.001
 β-Blockers1572 (89)127 (78)<0.001
ACE inhibitors/ARB1518 (86)132 (82)0.22
Thrombolytic therapy389 (22)33 (20)0.59
Primary angioplasty652 (37)46 (28)0.03
Coronary revascularisation888 (51)63 (39)0.006
Echocardiography
 Left atrial diameter (cm)4.0±0.64.2±0.50.001
 Ejection fraction (%)45±1241±13<0.001
 Mild FMR661 (38)83 (51)0.001
 Moderate or severe FMR122 (7)28 (17)<0.001
Medical therapy
 Antiplatelet agents1710 (97)148 (91)<0.001
 ACE inhibitors/ARB1518 (86)132 (82)0.09
 β-Blockers1572 (89)127 (78)<0.001
  • Data are mean±SD or number (%). Continuous variables were compared using the unpaired t test. Categorical variables were compared by the χ2 statistic.

  • * Calculated using the abbreviated modification of diet in renal disease equation.

  • ACE, angiotensin-converting enzyme; AF, atrial fibrillation; ARB, angiotensin II receptor blocker; FMR, functional mitral regurgitation; GFR, glomerular filtration rate.