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Error in Calculation Reporting. In the article titled “Excess Body Mass Index–Years, a Measure of Degree and Duration of Excess Weight, and Risk for Incident Diabetes” by Lee et al, published online on September 5, 2011, and printed in the January 2012 issue of the Archives (2012;166:42-48), the reporting of the calculation for excess body mass index (BMI)–years was erroneous. In the “Main Exposure” subsection of the “Abstract” in print on page 42, the first sentence should have read: “Excess BMI-years, which were calculated by subtracting the reference BMI (25.0 for adults or 85th percentile for adolescents) from the actual BMI for each study year and cumulating excess BMI for the study duration.” In the “Main Exposure” subsection of the “Methods” section on page 43, left-hand column, lines 5 through 8 should have read: “To calculate degree of excess BMI, we subtracted the reference BMI (defined as BMI thresholds for overweight of 25.0 for adults or 85th percentile [age- and sex-adjusted] for adolescents) from the actual BMI.”
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