Scientists reveal the hidden danger of missing blood pressure medication — SkimNews
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- Qianqian Yang analyzed individual patient data from 91,339 participants across nine clinical trials to test whether adherence altered antihypertensive treatment benefits, addressing confounding limitations in earlier observational studies.
- Patients taking at least 80% of assigned doses had an 11% lower incidence of major cardiovascular events than placebo or less-intensive comparison groups; those below that threshold had no statistically significant reduction.
- Systolic blood pressure was 5.2 mmHg lower in the treatment group than in comparators among high-adherence patients, but the difference narrowed to 3.0 mmHg among low-adherence patients.
- Medication adherence declined even inside clinical trials: 88% of participants met the 80% threshold in year one, compared with 79% by year five.
- Hypertension affects an estimated 1.4 billion adults aged 30-79 worldwide, and approximately half of patients do not take their blood-pressure prescriptions as directed.
- Felix Mahfoud urged routine adherence assessments, patient education and nonjudgmental conversations about barriers, with simpler schedules, single-pill combinations and longer-acting drugs presented as ways to make treatment easier to follow.
Why it matters: Patients taking at least 80% of prescribed doses had an 11% reduction in major cardiovascular events, while less-adherent patients showed no statistically significant reduction. For hypertension patients and the clinicians treating them, routine adherence checks and simpler regimens address a treatment gap that persisted even within structured clinical trials.
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