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Table 7 Subgroup analysis of the multivariate linear regression of phosphate levels to the hemoglobin levels based on phosphate 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-phosphate group, n = 157

High-phosphate group, n = 141

 

Coefficient (95% CI)

P-value

Coefficient(95% CI)

P-value

Unadjusted

-0.49 (-1.5, 0.52)

0.341

-1.51 (-2.07 -0.95)

 < 0.001

Model 1a

0.21 (-0.68, 1.09)

0.644

-1.73 (-2.24, -1.22)

 < 0.001

Model 2b

-0.07 (-1.23, 1.09)

0.903

-0.72 (-1.42, -0.02)

0.045

Model 3c

-0.05 (-1.2, 1.1)

0.929

-0.79 (-1.45, -0.13)

0.019

  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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