Table 2.

Scoring systems used in cardiac surgery

	EF with highest risk	Incidence in high-risk group*	Mortality in high-risk group	Reference
EuroSCORE	<30%	3 of all, ≥6	10.25 to 12.16%	[16]
Pons Score	- (NYHA IV)	10 of all, ≥30	54.4%	[85]
French Score	≤30%	5 of all, >6	21.2%	[86]
Ontario Province Risk Score	<20%	3 of all, ≥8	14.51%	[87]
Cleveland Clinic Score	<35%	3 of all, 10 to 31	44.6%	[88]
Parsonnet Score	<30%	4 of all, ≥20	>20%	[89]

EF, ejection fraction; NYHA, New York Heart Association.