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. Author manuscript; available in PMC: 2015 Dec 9.
Published in final edited form as: Eur Respir J. 2012 Aug 30;41(4):929–934. doi: 10.1183/09031936.00185211

Table 3.

Multilevel Regression Analyses of Clinical Outcomes by Body Mass Index Classification

Body Mass Index Classification 90-Day Mortality OR (95% CI) ICU Admission OR (95% CI) Mechanical Ventilation OR (95% CI) Vasopressor Use OR (95% CI)
Underweight (BMI <18.5) 1.40 (1.14 - 1.73) 1.17 (0.92 - 1.48) 1.22 (0.70 - 2.13) 1.30 (0.86 - 1.96)
Overweight (BMI 25-29.9) 0.87 (0.79 - 0.97) 0.96 (0.86 - 1.01) 1.00 (0.75 - 1.33) 0.93 (0.76 - 1.15)
Obese (BMI 30-39.9) 0.86 (0.74 - 0.99) 0.98 (0.84 - 1.13) 0.92 (0.63 - 1.35) 1.19 (0.91 - 1.56)
Morbidly Obese (BMI ≥40) 0.96 (0.72 - 1.28) 1.00 (0.79 - 1.28) 1.16 (0.62 - 2.16) 0.95 (0.59 - 1.50)