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Table 6 Creatinine, cystatin C and cystatin C-estimated GFR before (pre), immediately after (post) and 14 days after (follow-up) the marathon (n= minimum of 155 study participants)

From: Cardiac and renal function in a large cohort of amateur marathon runners

Parameter

Pre

Post

Follow-up

p (Pre vs. Post)

p (Pre vs. Follow-up)

Creatinine [mg/dL]

0.83 (0.75-0.93)

1.02 (0.88-1.26)

0.82 (0.72-0.92)

<0.001

0.003

Cystatin C [mg/dL]

0.68 (0.62-0.78)

0.85 (0.69-0.99)

0.66 (0.59-0.78)

<0.001

<0.001

Cystatin C-estimated GFR [mL/min]

125.1 (104.2-141.5)

93.7 (75.7-122.3)

130.2 (104.2-151.2)

<0.001

<0.001

  1. Values are shown as median (IQR). Statistically significant values are marked in bold. GFR, glomerular filtration rate.