Table 3. Relative change of hepcidin at RT in heparin plasma^*.

	Hepcidin level after one day at RT (%)
	Hep-25	Hep-24	Hep-22	Hep-20	Total-Hep
average	90	120	127	115	98
CV	8	21	14	25	5
+2 SD	103	169	163	171	108
−2 SD	76	71	91	58	87
n =	24	15	13	18	11
	Hepcidin level after one week at RT (%)
	Hep-25	Hep-24	Hep-22	Hep-20	Total-Hep
average	55	104	150	138	71
CV	23	29	29	38	17
+2 SD	80	164	237	242	94
−2 SD	30	44	62	34	47
n =	24	15	13	18	11

^*Relative change in hepcidin-25, -24, -22 and -20 concentrations in heparin plasma samples expressed as percentage of the respective concentrations in fresh samples. Samples were from 19 intensive care (IC) patients and 5 controls and kept for 1 day and 7 days (1 week) at RT. Results <1.0 nM were removed from the calculations, among which are the results of the isoforms of 5 controls. Only results from samples with complete serial measurements are included.