Scientists reveal the hidden danger of missing blood pressure medication
Missing blood pressure medication could mean losing much of its protection against heart attacks and strokes, according to an analysis of more than 91,000 people. Patients who consistently took their medication experienced an 11% reduction in major cardiovascular events, while those who missed too many doses saw little or no measurable benefit.
A new study reveals that missing doses of blood pressure medication can significantly diminish its protective effects against heart attacks, strokes, and other serious cardiovascular issues. Around 1.4 billion adults globally, aged 30 to 79, have high blood pressure (hypertension), a leading contributor to illness and death. While established medications that lower blood pressure reduce the risk of cardiovascular complications, around half of patients do not adhere to their prescriptions as directed.
Researchers from the University of Oxford conducted an analysis of randomized trial data from 91,339 participants across nine clinical trials, comparing blood pressure treatments with placebo or less-intensive regimens. Participants were categorized based on adherence: those taking at least 80% of their medication were considered high-adherence, while those taking less than 80% were low-adherence.
Despite consistent monitoring, patients showed a decline in adherence over time, with only 79% meeting the higher adherence threshold by the fifth year. Higher adherence led to a 5.2 mmHg reduction in systolic blood pressure in the treatment group compared to the control group. However, lower adherence resulted in only a 3.0 mmHg difference.
Patients who consistently took their medication had an 11% lower incidence of major cardiovascular events compared to those with lower adherence. The study emphasizes the importance of helping patients take their medication consistently to maximize the cardiovascular benefits and prevent complications.
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