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Table 5 Subgroup analysis of the multivariate linear regression of phosphate levels to the hemoglobin levels based on CKD stage

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

 

Patients with CKD stages G2–3, n = 167

Patients with CKD stages G4–5, n = 133

 

Coefficient (95% CI)

P-value

Coefficient(95% CI)

P-value

Unadjusted

-0.62 (-1.17, -0.07)

0.028

-1.02 (-1.4, -0.64)

 < 0.001

Model 1a

-0.26 (-0.75, 0.23)

0.29

-1.11 (-1.5, -0.73)

 < 0.001

Model 2b

0.06 (-0.58, 0.71)

0.85

-0.92 (-1.46, -0.37)

0.001

Model 3c

-0.23 (-0.87, 0.41)

0.483

-0.89 (-1.37, -0.41)

 < 0.001

  1. CI confidence interval, CKD chronic kidney disease
  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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