Table 1.

Characteristics of venous blood samples of subjects for both sexes (mean ± SD).

	Age (Years)	Hb (g/dL)	Hct (%)	pH	PCO2 (mmHg)
male	30.3 ± 4.0	15.5 ± 0.9	47.6 ± 2.6	7.35 ± 0.03	51.0 ± 6.7
female	28.9 ± 1.4	13.4 ± 0.7	41.3 ± 2.1	7.35 ± 0.04	45.8 ± 7.4
p	0.31	<0.001	<0.001	0.76	0.12