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Table 6 Subgroup analysis of the multivariate linear regression of phosphate levels to the hemoglobin levels based on the ferritin levels

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

 

Low-ferritin group, n = 141

High-ferritin group, n = 140

 

Coefficient (95% CI)

P-value

Coefficient (95% CI)

P-value

Unadjusted

-1.32 (-1.76, -0.88)

 < 0.001

-1.56 (-2.04, -1.08)

 < 0.001

Model 1a

-1.14 (-1.56, -0.71)

 < 0.001

-1.27 (-1.72, -0.83)

 < 0.001

Model 2b

-0.99 (-1.55, -0.42)

0.001

-0.61 (-1.2, -0.02)

0.044

Model 3c

-0.94 (-1.53, -0.35)

0.002

-0.56 (-1.11, -0.01)

0.047

  1. CI confidence interval
  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
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BMC Nephrology

ISSN: 1471-2369

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