A large-scale Oxford University study examining data from 1.4 million adults has identified significant gaps in the detection and management of high blood pressure across England. The research, based on participants enrolled between 2022 and 2025 through the Our Future Health programme, was published in BMJ Public Health and represents the largest investigation of its kind into hypertension prevalence in the country.
The study found that approximately 37% of adults have high blood pressure, defined as 140/90 mmHg or higher. Among those with the condition, 59% remain unaware of their diagnosis, exposing them to elevated risks of stroke, heart attack, and premature mortality. Additionally, even among individuals who have been diagnosed and are receiving medication through their general practitioners, blood pressure control is achieved in only 50% of cases, according to the findings.
The research revealed notable demographic patterns in hypertension distribution. The condition was almost 50% more prevalent in men than women, with rates of 42% compared to 29% across all age groups. Prevalence also increased with age. While progress in detecting and controlling high blood pressure improved significantly during the 2000s, advancement stalled around 2011. Researchers noted indications of worsening trends following the Covid-19 pandemic, potentially due to disruptions to healthcare delivery systems.
Experts pointed to multiple factors that may explain why blood pressure remains uncontrolled in treated patients. These include variations in individual responses to medication, the need for dose adjustments or multiple medications, interactions with other health conditions and medications, and practical challenges such as medication side effects, complex treatment regimens, and competing health demands. Lifestyle factors including weight, diet, salt consumption, alcohol use, and physical activity also influence blood pressure levels.
Researchers and health officials called for a substantial shift in how high blood pressure is approached in England. They emphasized the need for population-wide prevention strategies alongside targeted interventions for individuals at high cardiovascular risk, describing the current system as not adequately suited to address the scale of the problem.
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