Figure 2.
(A and B) Odds ratios of mortality by BMI, unadjusted (A) and adjusted for age, sex, days of invasive mechanical ventilation before cannulation, precannulation positive end-expiratory pressure, pH, PaO2:FiO2, use of neuromuscular blocking agents, inhaled nitric oxide, prone positioning, and renal replacement therapy (B). The continuous association of BMI and odds of ICU death may differ somewhat from the primary model, as it is based on a generalized additive model that smooths the line segments to allow curved transitions over the ranges of BMI values. The solid line represents the estimated odds ratio. The dashed lines represent 95% confidence bands. BMI = body mass index.