Additional file 1: Table S1.

Epidemiological characterisstics of subjects with diabetic nephropathy. NOTE. Values were expressed as expressed as mean ± SD and categorical data expressed as number (%). Abbreviation: BMI, body mass index. To convert serum creatinine in μmol/L to mg/dL, multiply by 0.0113; creatinine clearance rate in mL/s/1.73 m2 to mL/min/1.73 m2, multiply by 60.0. The listed P values are based on student’s test or Chi-square test. *P < 0.05 and **P < 0.01versus lean group. P < 0.01 versus overweight group.

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Chen et al. BMC Nephrology 2013 14:69   doi:10.1186/1471-2369-14-69