Non-corticosteroid group Corticosteroids group P value
N. 216 102
Age (years) 77.6±11.7 80.2±9.4 0.044
Male sex (%) 64 64 0.977
Former smokers (%) 37 41 0.522
Arterial hypertension (%) 82 76 0.227
Coronary heart disease (%) 41 37 0.563
Heart failure (%) 34 27 0.214
History of stroke (%) 15 16 0.959
Diabetes (%) 34 35 0.884
COPD (%) 35 45 0.086
Paroxysmal AF 19 27 0.144
Chronic AF 17 21 0.456
PSI class II (%) 11 7 0.273
PSI class III (%) 23 17
PSI class IV (%) 45 52
PSI class V (%) 21 24
Aspirin (%) 41 32 0.126
Thienopyridines (%) 18 17 0.729
Heparins (%) 9 9 0.960
OAC (%) 15 20 0.350
Statins (%) 36 31 0.415