Table 1: Baseline characteristics of the patients with VT/VF or no VT/VF and early VT/VF or late VT/VF.

CharacteristicsVT/VF (n=116)No VT/VF (n=888)p valueEarly VT/VF (n=92)Late VT/VF (n=24)p value

Age, y70 ± 1270 ± 130.7069 ± 1277 ± 110.002
Male, n (%)85 (73)639 (72)0.7471 (77)14 (58)0.074
BMI22 ± 3.923 ± 4.00.8123 ± 4.024 ± 3.50.38
Clinical history
Hypertension, n (%)63 (54)515 (58)0.3748 (52)14 (61)0.49
Diabetes mellitus, n (%)41 (35)284 (32)0.4632 (35)8 (32)0.46
Dyslipidemia, n (%)50 (43)442 (52)0.2030 (33)11 (48)0.48
Smoking, n (%)48 (41)400 (45)0.4838 (42)9 (39)1
FH of CAD, n (%)15 (13)142 (16)0.4110 (11)4 (17)0.48
prior MI, n (%)13 (11)80 (9)0.5010 (11)3 (13)0.73
prior PCI, n (%)20 (17)115 (13)0.1916 (17)4 (17)1.00
Presenting data
SBP, mmHg118 ± 35135 ± 32< 0.001121 ± 37111 ± 290.27
HR, beats/min82 ± 2975 ± 210.00478 ± 2797 ± 300.004
Onset to balloon time, h4.5 ± 4.15.0 ± 4.20.183.6 ± 2.67.8 ± 6.5< 0.001
Killip class< 0.0010.63
I, n (%)40 (34)665 (75)32 (35)8 (33)
II, n (%)20 (17)106 (12)15 (16)5 (21)
III, n (%)13 (11)55 (6.3)9 (9.8)4 (17)
IV, n (%)43 (37)51 (5.8)36 (39)7 (29)
CK, U/L506 ± 1052430 ± 9220.41303 ± 4781283 ± 1958< 0.001
CK-MB, U/L50 ± 7343 ± 620.2838 ± 5795 ± 105< 0.001
Hb, g/dL13 ± 2.314 ± 2.10.01514 ± 1.912 ± 3.30.007
eGFR, ml/min/1.73 m254 ± 1862 ± 20< 0.00158 ± 1740 ± 16< 0.001
BNP, pg/dL328 ± 550172 ± 3880.002250 ± 528619 ± 5530.016
EF, %47 ± 1455 ± 12< 0.00149 ± 1341 ± 170.019

BMI: body mass index, BNP: brain natriuretic peptide, CAD: coronary artery disease, CK: creatine kinase, CK-MB: creatine kinase-MB, EF: ejection fraction, eGFR: estimated glomerular filtration rate, FH: family history, Hb: hemoglobin, HR: heart rate, MI: myocardial infarction, PCI: percutaneous coronary intervention, SBP: systolic blood pressure, VT/VF: ventricular tachycardia or ventricular fibrillation.