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Figure 1 Glomerular Filtration Rate According to Population Subgroup and Cause of Death

Boxes show the 25th and 75th percentile with the mean shown. Whiskers represent 1.5 times the interquartile range. Glomerular filtration rate calculated based on the Modification of Diet in Renal Disease formula (ml/min/1.73 m²). Ischemic cardiac death (International Classification of Diseases [ICD]-9 code 410-414); cardiovascular death (ICD-9 code 410-414 or 420-438). CVD = history of nonperipheral arterial disease cardiovascular disease; PAD = history of lower extremity peripheral arterial disease.