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Table 3 Association of urine markers with 24 urine oxalate excretion (Uox), CaOx supersaturation (CaOx SS), proximal tubular oxalate concentration (PTOx), urine calcium/Cr, and urine citrate/Cr, among n = 30 PH patients

From: Urinary monocyte chemoattractant protein 1 associated with calcium oxalate crystallization in patients with primary hyperoxaluria

Biomarkerb

Uoxb

CaOx SS

PTOxab

Calcium/ Crab

Citrate/ Crab

Estimate (95% CI)

P

Estimate (95% CI)

P

Estimate (95% CI)

P

Estimate (95% CI)

P

Estimate (95% CI)

P

MCP-1

−0.195 (− 0.898, 0.509)

0.59

0.446 (0.207, 0.684)

<.001

− 0.135 (− 0.769, 0.498)

0.68

− 0.04 (− 0.587, 0.507)

0.89

− 0.14 (− 0.494, 0.213)

0.44

MCP-1/Cr

0.083 (− 0.538, 0.704)

0.79

0.289 (0.084, 0.494)

0.006

0.275 (− 0.301, 0.851)

0.35

–

–

–

–

Clusterin

−0.43 (− 0.981, 0.122)

0.13

0.106 (− 0.342, 0.555)

0.64

− 0.503 (−1.031, 0.024)

0.062

−0.273 (− 0.804, 0.258)

0.32

− 0.139 (− 0.566, 0.288)

0.52

Clusterin/Cr

−0.139 (− 0.654, 0.377)

0.60

−0.168 (− 0.56, 0.223)

0.40

−0.161 (− 0.651, 0.328)

0.52

–

–

–

–

NGAL

−0.025 (− 0.612, 0.562)

0.93

0.024 (− 0.171, 0.219)

0.81

−0.139 (− 0.673, 0.395)

0.61

−0.332 (− 0.671, 0.007)

0.055

0.16 (− 0.124, 0.443)

0.27

NGAL/Cr

0.172 (−0.386, 0.729)

0.55

−0.154 (− 0.35, 0.041)

0.12

0.117 (− 0.407, 0.641)

0.66

–

–

–

–

8 IP

−0.212 (− 0.439, 0.014)

0.067

0.208 (0.109, 0.308)

<.001

−0.242 (− 0.451, − 0.033)

0.023

0.082 (− 0.087, 0.251)

0.34

−0.141 (− 0.292, 0.01)

0.068

8 IP/Cr

0.045 (−0.098, 0.188)

0.54

0.043 (−0.021, 0.107)

0.19

0.107 (−0.034, 0.249)

0.14

–

–

–

–

L-FABP

0.011 (−0.211, 0.234)

0.92

0.053 (−0.026, 0.132)

0.19

0.099 (−0.118, 0.316)

0.37

−0.038 (− 0.163, 0.087)

0.55

− 0.018 (− 0.137, 0.1)

0.76

L-FABP/Cr

0.279 (− 0.01, 0.568)

0.059

− 0.165 (− 0.273, − 0.058)

0.003

0.421 (0.187, 0.654)

<.001

–

–

–

–

OPN

0.253 (− 0.383, 0.889)

0.44

0.134 (− 0.105, 0.373)

0.27

− 0.019 (− 0.629, 0.591)

0.95

0.03 (− 0.267, 0.327)

0.84

0.22 (− 0.319, 0.759)

0.42

OPN/Cr

0.514 (− 0.113, 1.14)

0.11

− 0.029 (− 0.261, 0.202)

0.81

0.345 (− 0.275, 0.966)

0.28

–

–

–

–

H-FABP

0.062 (− 0.23, 0.355)

0.68

0.149 (− 0.048, 0.346)

0.14

0.006 (− 0.305, 0.317)

0.97

− 0.067 (− 0.413, 0.279)

0.70

− 0.116 (− 0.335, 0.103)

0.30

H-FABP/Cr

0.32 (0.033, 0.607)

0.029

− 0.024 (− 0.214, 0.166)

0.81

0.353 (0.091, 0.615)

0.008

–

–

–

–

  1. P-values in bold denote significance at the 0.05 level
  2. Models were fit using the GEE procedure with the normal distribution, identity link and exchangeable correlation specifications, unless noted otherwise
  3. Models were adjusted for age, sex and eGFR
  4. aOnly the urine concentrations unadjusted for creatinine were used since these variables are also adjusted for creatinine
  5. bLog transformations were taken for all urine biomarkers as well as Uox, PTOx, Calcium/Cr and Citrate/Cr
  6. Units of measure are Clusterin: ng/ml and μg/g Cr; NGAL: ng/ml and ng/g Cr; 8 IP: pg/ml and ng/g Cr; MCP1: pg/ml and pg/g Cr; L-FABP: ng/ml and μg/g Cr; OPN: ng/ml and μg/g Cr; H-FABP: pg/ml and ng/g Cr