Table 4.

Correlogram of baseline biomarker levels and demographic and clinical parameters

AgeDiastolic Blood PressureSystolic Blood PressureeGFRSLICC ScoreSLEDAI ScoreHemoglobinWhite Blood Cell CountPlatelet count
uPRO-C3/Crea0.577a0.026−0.260−0.1300.031−0.312−0.118−0.158−0.054
uPRO-C6/Crea0.3510.1820.268−0.482a0.114−0.138−0.493a0.169−0.140
uC3M/Crea−0.174−0.247−0.3200.782b−0.429a0.1090.022−0.2260.086
PRO-C3−0.053−0.056−0.083−0.2190.010−0.052−0.326−0.336−0.163
PRO-C60.0930.2080.403a−0.783b0.2040.061−0.565a0.279−0.236
  • SLICC, Systemic Lupus International Collaborating Clinics; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index; u, urine; PRO-C3, biomarker of interstitial collagen type III; PRO-C6, biomarker of interstitial collagen type VI; C3M, biomarker of collagen type III.

  • a Moderate correlation (rho: 0.4–0.7).

  • b Strong correlation (rho>0.7).