Table 2.

Models for estimated long-term mortality

	Unadjusted OR (95% CI)	Adjusted OR (95% CI)	P value
Model 1: preoperative HR, age, sex, BMI
Preoperative HR	1.02 (1.01 to 1.04)	1.03 (1.01 to 1.04)	<0.001
Age	1.04 (1.02 to 1.06)	1.05 (1.02 to 1.07)	<0.001
Model 2: model 2+HTN+DM+smoke+ST+CHD+RI+PE
Preoperative HR	1.02 (1.01 to 1.04)	1.03 (1.01 to 1.04)	<0.001
Age	1.04 (1.02 to 1.06)	1.05 (1.02 to 1.07)	<0.001
RI	3.21 (1.52 to 6.79)	3.13 (1.41 to 6.94)	0.005
Model 3: model 3+AR+EF+HB+WBC count
Preoperative HR	1.02 (1.01 to 1.04)	1.03 (1.02 to 1.05)	<0.001
Age	1.04 (1.02 to 1.06)	1.06 (1.03 to 1.09)	<0.001
RI	3.21 (1.52 to 6.79)	2.50 (1.08 to 5.80)	0.025
EF	0.23 (0.11 to 0.50)	0.20 (0.08 to 0.51)	0.001
Model 4: model 4+SBP+CPB+intraoperative BL+HR in ED+CS+PCS+T
Preoperative HR	1.02 (1.01 to 1.04)	1.03 (1.01 to 1.05)	<0.001
Age	1.04 (1.02 to 1.06)	1.06 (1.03 to 1.09)	<0.001
RI	3.21 (1.52 to 6.79)	3.85 (1.58 to 9.35)	0.033
EF	0.23 (0.11 to 0.50)	0.25 (0.10 to 0.65)	0.005
CPB time	1.01 (1.00 to 1.01)	1.01 (1.00 to 1.01)	<0.001
Intraoperative BL	1.03 (1.01 to 1.05)	1.03 (1.00 to 1.05)	0.002

AR, moderate to severe aortic regurgitation; BL, blood loss; BMI, body mass index; CHD, coronary heart disease; CPB, cardiopulmonary bypass; CS, concomitant surgery; DM, diabetes mellitus; ED, emergency department; EF, ejection fraction; HB, haemoglobin; HR, heart rate; HTN, hypertension; PCS, prior cardiac surgery; PE, pericardial effusion; RI, renal insufficiency; SBP, systolic blood pressure; ST, stroke; T, time from onset of symptom to surgery; WBC, white blood cell.