Fig. 4

Reduction in DBP in subjects with mild to moderate hypertension, derived from a comparison of the BP values in Fig. 2 with the baseline values. Each point on the graph represents the average of at least 25 independent derivations. Error bars SEM. *P < 0.05, ***P < 0.001 (H. sabdariffa and lisinopril vs. placebo); ^α P < 0.01, ^ααα P < 0.001 (H. sabdariffa vs. lisinopril). All analyses were performed with two-way ANOVA with the Bonferroni posttest using the GraphPad Prism 5.0 analysis program