Intensive Blood Pressure Control in Primary Care May Lower Dementia Risk

A blood pressure management program delivered through routine primary care, using trained non-physician staff and a simple stepped-care protocol, reduced the risk of dementia by 15% over 7 years compared with usual care, according to results from the China Rural Hypertension Control Program (CRHCP) presented at the European Society of Cardiology (ESC) Congress 2026 in Munich, Germany.¹

The number of people living with dementia worldwide is projected to rise from 57 million in 2019 to 153 million by 2050, and with no curative treatment available, primary prevention has become a public health priority.²

Yingxian Sun, MD, principal investigator of CRHCP and professor at The First Affiliated Hospital of China Medical University, Shenyang, China, said the trial addressed a gap primary care clinicians regularly encounter: "Hypertension is known to be a modifiable risk factor for dementia but there is still limited long-term evidence that blood-pressure lowering can prevent dementia at the population level.”

CRHCP Trial: A Team-Based Blood Pressure Model Tested in Primary Care

CRHCP was a cluster-randomized trial conducted across 326 rural Chinese villages, randomized in a 1:1 ratio to a non-physician community healthcare provider-led intervention or usual care. Eligible participants were adults 40 years or older with an untreated systolic blood pressure (SBP) of ≥ 140 mmHg or diastolic blood pressure (DBP) of ≥ 90 mmHg, or 130/80 mmHg for those at high cardiovascular risk or already on antihypertensive medication.¹

In the intervention villages, trained non-physician community healthcare workers initiated and adjusted antihypertensive medications using a simple stepped-care protocol, working toward a target of SBP < 130 mmHg and DBP < 80 mmHg, with oversight from primary care physicians.¹

The active intervention phase ran for 4 years, followed by 3 more years of observation, for a total of 7 years. Investigators enrolled 33,995 participants with a mean age of 63.0 years, and 61% were female. By the end of the study, patients in the intervention group achieved substantially larger blood pressure reductions than those receiving usual care (a 17.6 mmHg drop in SBP vs 2.4 mmHg).¹

At 7 years, patients in the intervention group had a 15% lower risk of developing dementia than those receiving usual care (8.85% vs 10.55%; adjusted risk ratio, 0.85; 95% CI, 0.78-0.91; P <.001), along with a 13% lower risk of cognitive impairment without dementia (P <.001). Serious adverse events were also less common in the intervention group than with usual care (47.15% vs 49.78%).¹

What This Means for Blood Pressure Management in Primary Care

Shanshan Zhong, MD, investigator and presenter, also of The First Affiliated Hospital of China Medical University, said establishing a dementia benefit was a specific goal of the program from the outset: "Another important aim of the CRHCP was to assess whether intensive blood-pressure lowering can reduce the incidence of all-cause dementia.”

For primary care practices, the intervention's most notable feature may be who delivered it. Rather than requiring physician-led titration at every visit, trained non-physician staff managed medication initiation and adjustment using a straightforward, protocol-driven approach, with physician supervision built in. This delegated, team-based model closely mirrors how many primary care practices already structure chronic disease management, using medical assistants, nurses, or community health workers to handle routine monitoring and follow-up under physician oversight.

Sun said the results support extending structured blood pressure management, delivered through a scalable, team-based model, into routine primary care as a dementia-prevention strategy: "In this large community-based trial, a scalable intervention delivered by non-physician healthcare providers not only resulted in substantial reductions in blood pressure but also reduced the risk of dementia. These results support the long-term sustainability of integrating structured blood pressure management into routine primary care for dementia prevention at the population level."

For clinicians already managing hypertension in older adults, these findings offer another reason beyond cardiovascular risk reduction to pursue guideline-concordant blood pressure targets consistently, and support building more structured, team-based follow-up into routine hypertension care where resources allow.

References

1. European Society of Cardiology. Long-term intensive blood-pressure control reduces dementia risk. Published August 30, 2026. Accessed August 30, 2026. https://www.escardio.org/news/press/press-releases/long-term-intensive-blood-pressure-control-reduces-dementia-risk/

2. Zhang Z, Han S, Zhu H, et al. Global, regional, and national burden of early-onset Alzheimer's disease and other dementias in young adults aged 40-64 years, 1990-2021: a population-based study. Eur J Neurol. 2025;32:e70116.

3. He J, Ouyang N, Guo X, et al. Effectiveness of a non-physician community health-care provider-led intensive blood pressure intervention versus usual care on cardiovascular disease (CRHCP): an open-label, blinded-endpoint, cluster-randomised trial. Lancet. 2023;401:928-938.