Table 3.
Factors associated with serum zinc concentration in patients undergoing PD (n = 49).
| Variables | Univariate | Multivariate | ||
|---|---|---|---|---|
| β | P-value | β | P-value | |
| Age | −0.184 | 0.20 | ||
| Sex male | −0.123 | 0.40 | ||
| Body mass index | −0.106 | 0.47 | ||
| PD period | 0.076 | 0.60 | ||
| Hemodialysis combination | −0.070 | 0.63 | ||
| Antacids | 0.017 | 0.91 | ||
| Phosphate binder | −0.240 | 0.10 | ||
| Vitamin D | 0.033 | 0.82 | ||
| Diuretics | −0.038 | 0.80 | ||
| Oral iron supplementation | −0.023 | 0.88 | ||
| Dysgeusia | 0.106 | 0.47 | ||
| Dermatitis | −0.102 | 0.48 | ||
| Chronic diarrhea | 0.088 | 0.55 | ||
| PD modality: CAPD | 0.046 | 0.75 | ||
| PD modality: APD | −0.046 | 0.75 | ||
| Red blood cells | −0.151 | 0.30 | ||
| White blood cells | 0.083 | 0.57 | ||
| Hemoglobin | −0.120 | 0.41 | ||
| Platelets | 0.120 | 0.41 | ||
| Total protein | 0.357 | 0.01 | 0.105 | 0.57 |
| Albumin | 0.314 | 0.03 | 0.208 | 0.23 |
| Blood urea nitrogen | −0.117 | 0.42 | ||
| Creatinine | 0.166 | 0.25 | ||
| C-reactive protein | 0.129 | 0.38 | ||
| Uric acid | 0.060 | 0.68 | ||
| Sodium | −0.009 | 0.95 | ||
| Potassium | 0.055 | 0.71 | ||
| Chloride | −0.135 | 0.36 | ||
| Corrected calcium | 0.007 | 0.96 | ||
| Phosphorus | −0.143 | 0.33 | ||
| Magnesium | −0.122 | 0.40 | ||
| Copper | 0.040 | 0.79 | ||
| Iron | −0.027 | 0.85 | ||
| Transferrin saturation | −0.068 | 0.64 | ||
| Ferritin | 0.435 | <0.01 | 0.357 | <0.01 |
| Blood glucose | −0.049 | 0.74 | ||
| HbA1c | −0.089 | 0.54 | ||
| Total cholesterol | 0.269 | 0.06 | ||
| HDL cholesterol | −0.044 | 0.76 | ||
| LDL cholesterol | 0.159 | 0.28 | ||
| Triglycerides | 0.300 | 0.04 | 0.162 | 0.26 |
| β2 microgloblin | 0.056 | 0.70 | ||
| Intact PTH | 0.060 | 0.68 | ||
| Total Kt/V urea | −0.226 | 0.12 | ||
| Peritoneal Kt/V urea | −0.021 | 0.89 | ||
| Renal Kt/V urea | 0.169 | 0.25 | ||
| D/P Creatinine | −0.061 | 0.67 | ||
| Dose of ESA | 0.070 | 0.64 | ||
| ERI | −0.186 | 0.21 | ||
| GNRI | 0.131 | 0.37 | ||
SD, standard deviation; IQR, interquartile range; PD, peritoneal dialysis; CAPD, continuous ambulatory peritoneal dialysis; APD, automated peritoneal dialysis; HbA1c, hemoglobin A1c; HDL, high-density lipoprotein; LDL, low-density lipoprotein; PTH, parathormone; D/P Cre, 4-h dialysate/plasma creatinine ratio; ESA, erythropoietin stimulating agents; ERI, erythropoietin resistance index; GNRI, geriatric nutritional risk index.