Table 4 Univariate Cox regression analysis of event-free survival

Demographics

 Age, year

1.020

0.980 - 1.060

0.333

 Gender, female

1.094

0.397 - 3.016

0.863

Symptoms

 Syncope or presyncope

1.093

0.348 - 3.434

0.879

 Palpitation

1.369

0.497 - 3.777

0.544

 Chest pain

0.837

0.286 - 2.449

0.745

 NYHA-class (III - IV)

2.820

1.003 - 7.928

0.049

Congestive heart failure

2.704

0.924 - 7.913

0.069

Arrhythmias

 Atrial fibrillation

2.256

0.818 - 6.223

0.116

 Ventricular fibrillation

0.559

0.073 - 4.250

0.574

 Sustained VT

3.807

1.207 - 12.013

0.023

 Nonsustained VT

1.122

0.317 - 3.975

0.859

Conducting abnormalities

 AVB of any grade

3.801

1.210 - 11.945

0.022

 Distal AVB

0.758

0.100 - 5.764

0.789

Cardiac enzyme elevation*

1.540

0.558 - 4.247

0.404

CMR

 LVEDV, ml/m2

1.004

0.991 - 1.016

0.556

 LVESV, ml/m2

1.008

0.996 - 1.020

0.213

 SV, ml

0.968

0.940 - 0.997

0.032

 LVEF, %

0.959

0.930 - 0.990

0.009

 LVEF < 50%

3.813

1.213 -11.981

0.022

 LGE, presence

6.329

0.832 - 48.143

0.075

 LGE, extent, score

1.042

1.019 - 1.065

< 0.001

 LGE, extent, % LV volume

1.028

1.013 - 1.044

< 0.001

 SWMA, presence**

0.002

 SWMA, extent, score

1.067

1.014 - 1.122

0.012