Table 2.

Clinical Outcomes by Body Mass Index classification

Variable	Underweight (BMI <18.5) N = 650	Normal (BMI 18.5 - 24.9) N = 5,653	Overweight (BMI 25 - 29.9) N = 6,689	Obese (BMI 30 - 39.9) N = 5,012	Morbidly Obese (BMI >40) N = 742
Mortality
At 30-days post admission	124 (19.1)	744 (13.2)	699 (10.5)	388 (7.7)	52 (7.0)
At 90-days post admission	193 (29.7)	1,225 (21.7)	1,171 (17.5)	668 (13.3)	83 (11.2)
ICU Admission	141 (21.7)	1,057 (18.7)	1,138 (17.7)	928 (18.5)	152 (20.5)
Died in ICU	43 (30.5)	193 (18.3)	214 (18.1)	125 (13.5)	25 (16.5)
Died in Hospital	59 (41.8)	286 (27.1)	203 (25.6)	178 (19.2)	33 (21.7)
Mechanical Ventilation	19 (2.9)	121 (2.1)	128 (1.9)	106 (2.1)	18 (2.4)
Vasopressor Use	42 (6.5)	288(5.1)	293(4.4)	254(5.1)	33(4.4)