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Table 4 Associations between kidney function estimates with fitness and body composition in all patients at baseline

From: Agreement between cystatin-C and creatinine based eGFR estimates after a 12-month exercise intervention in patients with chronic kidney disease

  Baseline (r value)
Creatinine Cystatin-C EPIcr EPIcys EPIcr-cys MDRD
VO2peak 0.11 −0.04 0.20* 0.16 0.20* 0.18*
VO2peak/lean − 0.15 − 0.10 0.17 0.12 0.15 0.12
Appendicular lean mass 0.32** 0.12 −0.06 0.004 −0.01 − 0.05
Grip strength 0.39** 0.02 0.01 0.11 0.08 0.02
  1. ** = p <0.01, * = p <0.05