Table 4.

Multivariate analysis of operative mortality BMI as a categorical variable

	Unadjusted		Adjusted
Risk Factor	OR (95% CI)	p	OR (95% CI)	p
Severely underweight vs. Normal weight	1.87 (1.21,2.90)	0.005	1.42 (0.90,2.24)	0.13
Underweight vs. Normal weight	1.04 (0.57,1.92)	0.90	0.91 (0.48,1.71)	0.77
Overweight vs. Normal weight	1.06 (0.68,1.67)	0.79	1.08 (0.68,1.71)	0.76
Obese vs. Normal weight	1.41 (0.94,2.11)	0.10	1.30 (0.86,1.98)	0.21
Age (per 5 years)			1.13 (0.99,1.28)	0.07
Female sex			0.95 (0.69,1.29)	0.72
Race
White			1	n/a
Black			1.38 (0.92,2.07)	0.12
Other			0.92 (0.61,1.40)	0.71
Previous cardiothoracic operations			1.50 (1.06,2.13)	0.02
Presence of non-cardiac anatomic abnormalities			1.53 (0.63,3.71)	0.34
Presence of genetic syndrome or chromosomal abnormality			1.39 (0.94,2.06)	0.09
STAT mortality category
STAT 1			1	n/a
STAT 2			2.58 (1.49,4.46)	0.0007
STAT 3			4.99 (2.67,9.36)	<0.0001
STAT 4/5			9.88 (5.85,16.70)	<0.0001
Preoperative mechanical circulatory support			1.24 (0.62,2.48)	0.54
Preoperative persistent shock			1.90 (0.80,4.51)	0.15
Preoperative mechanical ventilation			5.17 (2.91,9.20)	<0.0001
Preoperative renal failure or need for dialysis			2.05 (1.11,3.76)	0.02
Preoperative neurological deficit/stroke/intracranial hemorrhage			2.16 (1.26,3.70)	0.005
Preoperative diabetes mellitus			1.59 (0.58,4.37)	0.37
Any other preoperative factor			1.93 (1.39,2.69)	0.0001