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Figure 1 The effect of body mass index (BMI) on perioperative death, postoperative complications, and postoperative blood loss following coronary artery bypass grafting. Unadjusted (closed circles) and adjusted (open circles) odds ratios and 95% confidence intervals for underweight and overweight groups of increasing BMI compared with a normal weight group. *For hospital death, the two highest BMI categories were combined for analysis.
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