Table 6.
Associated risk factors for anemia in patients with CKD who did not take erythropoietin-stimulating agents.
| Univariate Logistic Regression in Anemia Patients | Multivariable Logistic Regression in Anemia Patients | |||
|---|---|---|---|---|
| Unadjusted OR (95% CI) | P-Value | Adjusted OR (95% CI) | P Value | |
| Age | 1.075 (1.031, 1.121) | 0.0006 | - | - |
| Weight z-score | 0.853 (0.758, 0.960) | 0.0081 | - | - |
| Height z-score | 0.901(0.79, 1.029) | 0.1247 | - | - |
| BMI z-score | 0.779 (0.661, 0.918) | 0.0029 | - | - |
| Birth age | 1.132 (1.039, 1.233) | 0.0046 | - | - |
| Glomerulonephritis | 3.263 (1.905, 5.590) | <0.0001 | 3.263 (1.905, 5.590) | <0.0001 |
| Hypertension | 1.184 (0.731, 1.915) | 0.4928 | - | - |
| Serum albumin | 0.498 (0.355, 0.698) | <0.0001 | - | - |
| eGFR | 0.966 (0.957, 0.975) | <0.0001 | - | - |
| iPTH | 1.007 (1.004, 1.011) | <0.0001 | - | - |
| Serum Ca | 0.494 (0.389, 0.628) | <0.0001 | - | - |
| Serum P | 1.773 (1.352, 2.324) | <0.0001 | - | - |
| Urine protein creatinine ratio | 1.001 (0.968, 1.035) | 0.9482 | - | - |
| Hemoglobin | 0.138 (0.091, 0.208) | <0.0001 | - | - |
| Ferritin | 1.001 (1.000, 1.003) | 0.0667 | - | - |
| Transferrin saturation | 1.003 (0.990, 1.016) | 0.6548 | - | - |
| Iron supplementation use ** | 3.652 (2.058, 6.482) | <0.0001 | - | - |
CKD, chronic kidney disease; OR, odds ratio; CI, confidence interval; BMI, body mass index; GFR, estimated glomerular filtration rate; iPTH, ionized parathyroid hormone; Ca, serum calcium; P, serum phosphorus; ** Iron agents: any agents including intravenous or oral intake.