Fig. 1

Systolic and diastolic pressures from African American males (dark) and females (light) with normal blood pressure (NTN), hypertension (HTN), or hypertension with spironolactone included in their antihypertensive regimen (HTN + Spiro) shown as box-whisker plots. *p < 0.05 vs. NTN, #p < 0.05 vs. HTN, +p < 0.05 vs. male