Table 2 Overall description of the... | American Society of Hematology

Table 2

Overall description of the relevant parameters as measured at different altitudes

Variable	SL1 (140 m), month −1			Namche (3400 m), days 1 and 2			BC1 (5400 m), days 10-12			BC2 (5400 m), days 19 and 20			SL-return (140 m), months 3 and 4
Variable	n	Mean	Median	n	Mean	Median	n	Mean	Median	n	Mean	Median	n	Mean	Median
Hematocrit, %	41	42.1	43.0	41	44.2	43.0	40	50.1	50.5	40	54.1	55.0	35	42.1	41.6
Hepcidin,* ng/mL	38	49.4	60.7	39	32.7	35.9	38	7.6	5.1	37	9.2	8.4	29	42.9	53.4
Erythropoietin, mU/mL	40	11.5	11.0	41	32.4	34.2	40	34.9	38.0	38	24.7	25.7	35	13.2	12.2
Serum iron, μg/dL	39	75.8	74.0	41	102.8	106.0	38	55.9	58.0	26	78.2	83.5	32	92.8	925.0
Transferrin, mg/dL	37	242.9	242.0	41	273.0	274.0	38	294.5	292.0	25	315.3	318.0	32	267.7	261.5
Transferrin saturation, %	37	22.7	22.4	41	26.5	27.7	38	13.4	13.9	25	17.2	17.9	35	24.3	23.6
Ferritin, ng/mL	40	102.4	115.0	41	80.6	88.0	39	42.2	42.0	38	42.1	41.5	31	91.8	97.0
Soluble transferrin receptor, pmol/mL	39	21.1	21.3	40	23.4	22.7	38	33.9	32.7	38	31.0	29.6	32	18.4	18.0
GDF15, pg/mL	38	338.7	386.8	41	500.7	488.6	39	601.6	588.3	39	551.6	577.4	28	383.8	401.8
IL-6,* pg/mL	38	17.9	16.2	39	25.8	26.7	36	34.3	31.7	38	29.5	28.4	28	19.0	17.2

Variable	SL1 (140 m), month −1			Namche (3400 m), days 1 and 2			BC1 (5400 m), days 10-12			BC2 (5400 m), days 19 and 20			SL-return (140 m), months 3 and 4
Variable	n	Mean	Median	n	Mean	Median	n	Mean	Median	n	Mean	Median	n	Mean	Median
Hematocrit, %	41	42.1	43.0	41	44.2	43.0	40	50.1	50.5	40	54.1	55.0	35	42.1	41.6
Hepcidin,* ng/mL	38	49.4	60.7	39	32.7	35.9	38	7.6	5.1	37	9.2	8.4	29	42.9	53.4
Erythropoietin, mU/mL	40	11.5	11.0	41	32.4	34.2	40	34.9	38.0	38	24.7	25.7	35	13.2	12.2
Serum iron, μg/dL	39	75.8	74.0	41	102.8	106.0	38	55.9	58.0	26	78.2	83.5	32	92.8	925.0
Transferrin, mg/dL	37	242.9	242.0	41	273.0	274.0	38	294.5	292.0	25	315.3	318.0	32	267.7	261.5
Transferrin saturation, %	37	22.7	22.4	41	26.5	27.7	38	13.4	13.9	25	17.2	17.9	35	24.3	23.6
Ferritin, ng/mL	40	102.4	115.0	41	80.6	88.0	39	42.2	42.0	38	42.1	41.5	31	91.8	97.0
Soluble transferrin receptor, pmol/mL	39	21.1	21.3	40	23.4	22.7	38	33.9	32.7	38	31.0	29.6	32	18.4	18.0
GDF15, pg/mL	38	338.7	386.8	41	500.7	488.6	39	601.6	588.3	39	551.6	577.4	28	383.8	401.8
IL-6,* pg/mL	38	17.9	16.2	39	25.8	26.7	36	34.3	31.7	38	29.5	28.4	28	19.0	17.2

Geometric mean values are given for mean.

Two subjects were excluded from the analysis of hepcidin and IL-6 because of upper airway infection.