Table 9.
Associated risk factors for iron deficiency in patients with CKD who did not take iron supplements.
| Univariate Logistic Regression in Iron Deficiency Patients | Multivariable Logistic Regression in Iron Deficiency Patients | |||
|---|---|---|---|---|
| Unadjusted OR (95% CI) | P-value | Adjusted OR (95% CI) | P Value | |
| Age | 0.908 (0.865, 0.954) | 0.0001 | - | - |
| Weight z-score | 1.041 (0.895, 1.212) | 0.6002 | - | - |
| Height z-score | 1.002(0.847, 1.184) | 0.9856 | ||
| BMI z-score | 1.148 (0.939, 1.403) | 0.1783 | 1.318 (1.038, 1.675) | 0.0235 |
| Birth age | 0.783 (0.545, 1.125) | 0.1858 | - | - |
| Glomerulonephritis | 0.569 (0.277, 1.168) | 0.1243 | - | - |
| Hypertension | 1.327 (0.752, 2.34) | 0.3292 | - | - |
| Serum albumin | 0.791 (0.543, 1.152) | 0.2209 | - | - |
| eGFR | 1.004 (0.996, 1.012) | 0.3357 | - | - |
| iPTH | 0.997 (0.993, 1.001) | 0.107 | 0.993 (0.988, 0.998) | 0.007 |
| Serum Ca | 1.008 (0.804, 1.264) | 0.9467 | - | - |
| Serum P | 1.09 (0.797, 1.493) | 0.589 | - | - |
| Hemoglobin | 0.843 (0.734, 0.967) | 0.0145 | 0.693 (0.565, 0.85) | 0.0004 |
| Ferritin | 0.980 (0.970, 0.989) | <0.0001 | 0.976 (0.965, 0.987) | <0.0001 |
| Transferrin saturation | 1.018 (0.990, 1.047) | 0.2164 | - | - |
| Erythropoietin stimulating use ** | 0.985 (0.255, 3.802) | 0.9825 | - | - |
CKD, chronic kidney disease; OR, odds ratio; CI, confidence interval; BMI, body mass index; GFR, glomerular filtration rate; iPTH, ionized parathyroid hormone; Ca, serum calcium; P, serum phosphorus; ** Iron agents: any agents including intravenous or oral intake.