Table 2.

Estimated Odds Ratios and 95% Confidence Intervals From the Final Risk Adjustment Model

Variable	OR (95% CI)	p Value
Age in neonates, per week	0.88 (0.81–0.95)	0.0010
Age in infants, per month	1.05 (0.99–1.11)	0.0796
Age in children, per year	1.00 (0.97–1.03)	0.7886
Age in adults, per year	1.04 (1.02–1.05)	<0.0001
STAT Category 2 vs 1	1.75 (1.24–2.46)	0.0013
STAT Category 3 vs 1	2.49 (1.69–3.68)	<0.0001
STAT Category 4 vs 1	5.14 (3.72–7.11)	<0.0001
STAT Category 5 vs 1	11.40 (7.17–18.14)	<0.0001
Weight in neonates, per 1-kg increase	0.58 (0.51–0.65)	<0.0001
Weight in infants, per 1-kg increase	0.71 (0.65–0.78)	<0.0001
Prior cardiothoracic operation	1.50 (1.27–1.78)	<0.0001
Any noncardiac congenital anatomic abnormality	1.35 (1.09–1.66)	0.0056
Any chromosomal abnormality or syndrome	1.57 (1.40–1.77)	<0.0001
Prematurity (in neonates and infants)	1.39 (1.20–1.60)	<0.0001
Preoperative/preprocedural mechanical circulatory support	4.27 (3.03–6.03)	<0.0001
Shock, persistent at time of operation	3.15 (2.46–4.03)	<0.0001
Renal dysfunction or Renal failure requiring dialysis (or both)	2.12 (1.64–2.73)	<0.0001
Mechanical ventilation to treat cardiorespiratory failure	2.11 (1.88–2.37)	<0.0001
Preoperative neurological deficit	1.91 (1.38–2.65)	<0.0001
Any other preoperative factor	1.61 (1.44–1.80)	<0.0001

CI = confidence interval;

OR = odds ratio.