Research Article

Zinc Acetate Hydrate Supplementation versus Polaprezinc Supplementation for Improving Hypozincemia in Hemodialysis Patients: A Randomized Clinical Trial

Table 1

Comparison of baseline patient characteristics by groups.

ZAH groupPPZ group value

Number of patients3738
Agea (years)74.7(12.8)72.6(13.0)0.452
HD vintagea (years)7.2(5.4)7.5(5.7)0.860
Male sexb28(75.7%)27(71.1%)0.651
Primary diseaseb0.686
 Chronic glomerulonephritis n (%)15(40.5%)14(36.8%)
 Diabetic nephropathy n (%)16(43.2%)12(31.6%)
 Other, n (%)6(16.3%)12(31.6%)
Serum zinca (μg/dL)52.3(4.9)52.4(5.2)0.903
Serum coppera (μg/dL)89.1(15.3)93.5(17.0)0.396
Alkaline phosphatasea (U/L)84.8(30.2)83.5(34.1)0.611
ALTa (U/L)11.3(5.1)12.3(5.7)0.517
ASTa (U/L)13.4(4.4)14.8(9.4)0.983
LDHa (U/L)182.3(37.2)176.5(43.9)0.474
Total bilirubina (mg/dL)0.37(0.12)0.37(0.12)0.772
Serum calciuma (mg/dL)8.67(0.56)8.79(0.65)0.176
Serum creatininea (mg/dL)9.11(2.51)9.69(2.62)0.539
Serum chlorinea (mEq/L)101.8(3.7)102.3(3.4)0.516
Serum phosphatea (mg/dL)5.3(1.0)5.5(1.4)0.592
Serum sodiuma (mEq/L)139.2(3.1)138.5(3.4)0.465
Serum potassiuma (mEq/L)4.5(0.6)4.5(0.6)0.874
Hemoglobina (g/dL)11.3(1.1)11.2(1.1)0.286
Ferritina (ng/mL)184.6(130.9)171.3(118.9)0.798
TSATa (%)25.6(10.7)27.5(17.1)0.567
Glucosea (mg/dL)155.4(53.8)141.1(60.8)0.075
LDL-cholesterola (mg/dL)82.3(18.7)83.5(20.1)0.715
CRPa (mg/dL)0.99(1.98)0.80(1.20)0.824
Total cholesterola (mg/dL)141.6(23.2)151.8(25.4)0.063
Total proteina (g/dL)6.1(0.5)6.3(0.5)0.307
Serum albumina (g/dL)3.38(0.26)3.39(0.32)0.932
Transthyretina (mg/dL)24.7(5.5)23.9(5.5)0.481
Urea nitrogena (mg/dL)57.9(13.1)58.5(14.0)0.849
BNPa (pg/mL)299.1(241.5)329.4(514.0)0.322
Treat timea (hours)4.7(0.6)4.8(0.6)0.751
Dry body weighta (kg)57.9(11.3)56.5(9.0)0.656
Systolic blood pressurea (mmHg)149.9(21.7)150.4(22.7)0.870
Diastolic blood pressurea (mmHg)80.5(15.1)82.0(12.6)0.508

aWilcoxon test. bχ2 test. Data are presented as n (%) or as the mean (SD). ALT, alkaline aminotransferase; AST, aspartate aminotransferase; BNP, human brain natriuretic peptide; CRP, C-reactive protein; LDH, lactate dehydrogenase; TSAT, transferrin saturation.