An investigation into the effects of the association between HDL level and the two CD34-positive cell categories (high and low) on hypertension revealed a significant interaction; p values for the effect of this interaction were p = 0.034 for the age-adjusted model, p = 0.025 for the age- and BMI-adjusted model, and p = 0.022 for the fully adjusted model. The gene discussed is CD34; the disease is Hypertension.