Hematocrit and mean arterial blood pressure in pre- and postmenopause women

Figures & data

Table 1 Population features, blood chemistry, Hct and MAP of pre- and postmenopause women

	Premenopause	Postmenopause
Number, n	85	92
Age, years	39.2 ± 3.3	52.1 ± 7.2
Hematocrit, %	42.6 ± 2.4	42.9 ± 2.3
Mean arterial blood pressure, mmHg	85.6 ± 7.7	89.8 ± 11.0
Weight, kg	66.9 ± 10.3	67.7 ± 10.0
BMI	26.5 ± 3.9	27.6 ± 5.3
Urea, mg/dl	22.3 ± 2.5	23.1 ± 2.4
Creatinine, mg/dl	0.77 ± 0.10	0.75 ± 0.12
Glucose, mg/dl	90.5 ± 2.5	92.1 ± 9.0

Notes: *Statistically different between groups, p < 0.005.

Abbreviations: BMI, body mass index; Hct, hematocrit; MAP, mean arterial blood pressure.

Figure 1 Distribution of hematocrit (Hct) and mean arterial blood pressure (MAP) in pre- and postmenopausal women in the city of Durango, Mexico. Both distributions are Gaussian.

Figure 2 Linear regression between MAP and Hct in pre- and postmenopause women in the city of Durango, Mexico. comparison with the relation between MAP and Hct if blood viscosity is the only determinant of peripheral vascular resistance.

Abbreviations: Hct, hematocrit; MAP, mean arterial blood pressure.

Figure 3 Comparison of the trends for MAP vs Hct for women aged > 60 years in a study in the city of Stockholm (n = 2,189) and postmenopause women in the city of Durango (n = 92).

Abbreviations: Hct, hematocrit; MAP, mean arterial blood pressure.

Figure 4 Mean arterial pressure as a function of hematocrit (Hct), and therefore blood viscosity, when the effect of hematocrit is factored out (normalized MAP according to equation) Both trends are statistically significant (p< 0.05 for <45 years and >45 years) as well as the difference in trends (p < 0.02).

Abbreviation: MAP, mean arterial blood pressure.