CD79A and chronic kidney disease: BMI: Body mass index, eGFR: Estimated glomerular filtration rate, Hb: Hemoglobin, Alb: Albumin, CRP: C-reactive protein, IPS: Index of postural stability, TUG: Timed up & go test, FIM: Functional independence measure, CKD: Chronic kidney disease, GNRI: Geriatric nutritional risk index, IgA: Immunoglobulin A, ANCA: Antineutrophil cytoplasmic antibody