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Table 4 Multivariate linear regression analysis of phosphate levels to the hemoglobin levels (patients with an eGFR < 60 mL/min/1.73 m2 and ≥ 8 mL/min/1.73 m2, n = 245)

From: Association between serum phosphate levels and anemia in non-dialysis patients with chronic kidney disease: a retrospective cross-sectional study from the Fuji City CKD Network

 

Coefficient (95% CI)

P-value

Unadjusted

-1.32 (-1.71, -0.93)

 < 0.001

Model 1a

-1.13 (-1.49, -0.76)

 < 0.001

Model 2b

-0.57 (-1.04, -0.11)

0.016

Model 3c

-0.69 (-1.12, -0.25)

0.002

  1. CI confidence interval, eGFR estimated glomerular filtration rate
  2. aModel 1: Sex, age, smoking, cancer, diabetes, bone fracture, and gastrointestinal bleeding were added
  3. bModel 2: The estimated glomerular filtration rate, urea nitrogen level, urinary protein level, calcium level, albumin level, body mass index, and reticulocyte count were added
  4. cModel 3: The serum iron level, total iron-binding capacity, ferritin level, C-reactive protein level, and white blood cell count were added