Table 3.

C-reactive protein (CRP) and N-terminal prohormone of brain natriuretic peptide (NT-proBNP) of all study participants before (pre), immediately after (post) and 14 days after (follow-up) the marathon

Parameter	Pre	Post	Follow-up	p (Pre vs. Post)	p (Pre vs. Follow-up)
CRP [mg/dl]	0.10 (0.05 - 0.21)	0.06 (0.04 - 0.12)	0.10 (0.06 - 0.18)	<0.001	0.256
NT-proBNP [pg/ml]	71.9 (41.2 - 124.1)	135.3 (77.7 - 219.8)	51.5 (30.5 - 82.2)	<0.001	<0.001

Values are shown as median (IQR). Statistically significant values are marked in bold.