Fig. 6From: Diagnostic value of serum cystatin C for diabetic nephropathy: a meta-analysisMeta-regression and subgroup analysis of serum cystatin C diagnosing diabetic nephropathy. PENIA: particle enhanced nephelometry immunoassay; PETIA: particle-enhanced turbidimetric immunoassay; T2DM: type 2 diabetic mellitus; GFR: Glomerular Filtration Rate; DM: diabetic mellitusBack to article page