Hematological parameters at sea level and the first day of exposure to 5260 m.

Data are presented as mean ± SD with the number of subjects (M,W) indicated in parentheses. This table only includes data for subjects with measures at both time points so that the effect of acute altitude on Hbmass and BV parameters can be distinguished from the inter-individual variation. Paired t-tests were performed for each parameter and none of the differences were statistically significant (all p>0.05).Hematological parameters at sea level and the first day of exposure to 5260 m.