Table 2

Independent preoperative predictors of mortality in infective endocarditis by logistic regression analysis and the deriving scoring system for mortality prediction after cardiac surgery (RISK-E score)

	β coefficients	SE	p Value	Score
Age (years)
≤51	0			0
61 (14)	0.916	0.370	0.010	9
65 (13)	1.336	0.367	<0.001	13
≥73	1.362	0.363	<0.001	14
Prosthetic endocarditis	0.645	0.239	0.007	6
Virulent microorganism*	0.903	0.392	0.020	9
Septic shock	0.702	0.350	0.041	7
Thrombocytopaenia†	0.655	0.241	0.006	7
Acute renal insufficiency	0.542	0.233	0.022	5
Cardiogenic shock	1.486	0.275	<0.001	15
Periannular complications‡	0.541	0.238	0.020	5
Constant	−3.358

*Staphylococcus aureus or fungi.
†Thrombocytopaenia (<1 50 000 platelets/mm³).
‡Presence of abscess, pseudoaneurysm, fistula or prosthetic dehiscence.