Study Reveals Impact of Blood Pressure Drug Adherence

A major analysis of clinical trial data involving 91,339 patients across nine randomized trials revealed that poor adherence to blood pressure medication significantly diminishes its ability to prevent heart attacks, strokes, and other cardiovascular complications. The study, presented by Qianqian Yang from the University of Oxford, UK, classified patients with at least 80% adherence to their antihypertensive drugs as having high adherence.

Those with low adherence, taking less than 80%, showed a systolic blood pressure reduction of only 3.0 mmHg, compared to 5.2 mmHg for high adherers. The proportion of patients with high adherence decreased from 88% in the first year to 79% by the fifth year.

The study found an 11% reduction in major cardiovascular diseases among patients with high adherence, while no significant benefits were observed for those with low adherence. Professor Felix Mahfoud of the European Society of Cardiology emphasized the need for healthcare providers to address medication adherence in hypertension care.