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. 2022 Jul 23;23:263. doi: 10.1186/s12882-022-02892-7

Table 1.

Demographic, clinical and laboratory data according to residual renal function

RKF (yes)
n = 29 (≥100 mL/day)
RKF (No)
n = 49 (>  100 ml/day)
P
Demographic and clinical data
 Age (years) 45 (33–63) 57 (42–65) 0.127
 Gender / male 16 (55.2%) 30 (61.2) 0.599
 Diabetes mellitus 3 (10.3%) 7 (14.3%) 0.736
 Hypertension 26 (89.7%) 39 (79.6%) 0.351
Original kidney disease: 0.39
 Hypertensive nephrosclerosis 11 (37.9%) 22 (44.9%)
 Diabetic nephropathy 3 (10.3%) 6 (12.2%)
 Polycystic kidney disease 0 2 (4.1%)
 Obstructive uropathy 0 3 (6.1%)
 Hereditary 0 2 (4.1%)
 Reflux nephropathy 1 (3.4%) 0
 Lupus nephritis 2 (6.9%) 0
 Chronic glomerulonephritis 1 (3.4%) 0
 Failed kidney transplant 0 1 (2%)
 Chronic interstitial nephritis 4 (13.8%) 0
 Unknown 6 (20.7%) 13 (26.5%)
 Drug-induced 1 (3.4%) 0
HCV positivity 1 (3.4%) 15 (30.6%) 0.004
Parathyroidectomy 0 3 (6.1%) NA
HD duration (years) 2 (1.5–3) 6 (4–8) < 0.001
BMI (Kg/m2) 30.1 (24.9–34.4) 27.1 (24.9–32.9) 0.22
Laboratory data
 Hemoglobin (g/dl) 10.6 (9.45–11.5) 10.7 (9.9–11.8) 0.498
 TSAT (%) 28 (21–38.5) 31 (22.5–39.5) 0.441
 Ferritin (ng/ml) 543 (285–927) 552 (315–1037.5) 0.714
 Calcium (mg/dl) 8.8 (8–9.19) 8.8 (7.85–9.19) 0.796
 Phosphorus (mg/dl) 5.7689 ± 2.0651 5.6326 ± 1.79691 0.760
 PTH (pg/ml) 483 (277.5–884.5) 736 (379.5–1047.5) 0.141
 KT/V 1.1547 (0.8567–1.3402) 1.2563 (0.86–1.6301) 0.329

Abbreviation: HCV Hepatitis C virus, HD Hemodialysis, TSAT Transferrin saturation, PTH Parathyroid hormone