Individual variations and sex differences in hemodynamics and percutaneous arterial oxygen saturation (SpO 2 ) in Tibetan highlanders of Tsarang in the Mustang district of Nepal.

was marginally correlated with younger age and higher Hb in men and with lower heart rate and lower Hb in women. Hemoglobin concentration was similar to that found previously in lowlanders, but higher in some individuals. These results indicate individual variation and sex differences in the hemodynamics of high-altitude adaptation in Tibetan highlanders of Tsarang, as well as low-Hb adaptation to high altitude equal to that of other Tibetans.