← All articles

Hypertension and Cardiovascular

Stroke Prevention in Black Adults: What Every Black African and Caribbean Person in the UK Needs to Know

Dr Kennedy Umege8 min read

NHS.uk says your risk of stroke may be higher if you're from a Black or South Asian background. One London study (Tillin et al., 2013, an observational cohort published in the Journal of the American College of Cardiology, not a Tier-1 source and not a current national rate) found African Caribbean adults had about 1.5 times the stroke risk of Europeans.

I am Dr Kennedy Umege, a UK GP (GMC 7592446; GP Register from 31 January 2023). Registered qualification: MB BS 2004, University of Port Harcourt. UK-registered since August 2018. This article lays out NICE blood-pressure guidance, the NHS Health Check, and FAST. It is general health education. It is not personal medical advice. It does not represent the NHS or any NHS employer. A companion video is in production; this article is the live written version.

Why Stroke Risk Can Be Higher for Black Adults in the UK

High blood pressure is one of the conditions NHS.uk lists as increasing the risk of stroke. NHS.uk also says you're at higher risk of high blood pressure if you have a Black African, Black Caribbean or South Asian ethnic background.

But hypertension is not the only factor:

  • Diabetes is listed by NHS.uk as increasing stroke risk, and NHS.uk says Type 2 Diabetes risk is higher from age 25 in Black African and Black Caribbean groups.
  • Sickle cell disease is listed by NHS.uk as increasing stroke risk.
  • Atrial fibrillation (an irregular and fast heartbeat) is listed by NHS.uk as increasing stroke risk.

Understanding Stroke: Why Speed Saves Lives

A stroke happens when the blood supply to part of the brain is cut off. An ischaemic stroke occurs when a blood clot blocks an artery supplying the brain. A haemorrhagic stroke occurs when a blood vessel in or around the brain ruptures. Both types cause brain cells to die.

The effects vary widely: weakness or paralysis on one side, speech difficulty, swallowing problems, visual disturbance, cognitive changes, and emotional impact. Some strokes are fatal. Some cause permanent disability. Some, if treated fast enough, leave minimal lasting damage.

FAST — Face drooping, Arm weakness, Speech difficulty, Time to call 999. NICE NG128 points to clot-busting medicines (thrombolysis) for ischaemic stroke only within 4.5 hours of symptoms starting, once bleeding in the brain has been ruled out. NHS.uk says call 999 if you think you're having, or have had, a stroke, even if the signs have stopped. If you or someone nearby shows these signs, call 999 immediately.

But the most powerful thing I can talk about in this article is what happens before the stroke — because that is where the real power lies.

Blood Pressure: A Key Risk You Can Check and Control

NHS.uk advises getting your blood pressure checked at a pharmacy or GP surgery if you're aged 40 or over and have not had it checked for more than 5 years, or if you think you might be at risk.

High blood pressure does not usually cause symptoms, so the only way to know is to have it checked (NHS.uk).

If your clinic blood pressure is between 140/90 and 180/120 mmHg, NICE NG136 recommends ambulatory blood pressure monitoring to confirm the diagnosis, or home monitoring if ambulatory monitoring is unsuitable. Hypertension is confirmed if the ambulatory or home average is 135/85 mmHg or higher.

Here is a critically important detail — and it is more precise than “most Black patients.”

NICE NG136 (step 1, recommendations dated 2019; the February 2026 update did not change this algorithm) splits first-line treatment by whether you have type 2 diabetes:

  • If you are of Black African or African–Caribbean family origin and you do not have type 2 diabetes, NICE offers a calcium-channel blocker as step 1 (recommendation 1.4.35).
  • If you have type 2 diabetes, NICE offers an ACE inhibitor or an ARB as step 1, at any age and any family origin (recommendation 1.4.32). For Black African or African–Caribbean family origin, NICE prefers an ARB over an ACE inhibitor when an A-type drug is being chosen (recommendation 1.4.30).

ACE inhibitors are not “less effective” as a reason to stop a medicine that is already indicated — for example for diabetes, chronic kidney disease, or heart failure. If you are already on blood pressure medication, do not stop it or switch it because of an article. Ask your GP what class you are on, and whether it still matches NG136 for your conditions.

The February 2026 NG136 update added healthy-living advice for people with raised blood pressure who have not been diagnosed with hypertension (1.2.11). It did not change ethnicity prescribing.

How to Access Your NHS Cardiovascular Risk Assessment

There are two clear routes.

1. The NHS Health Check

The NHS Health Check is free for adults in England aged 40 to 74 who do not already have certain conditions, such as heart disease, diabetes, high blood pressure, atrial fibrillation or stroke. It checks:

  • Blood pressure
  • Cholesterol
  • Blood sugar (in some cases)
  • BMI
  • Physical activity levels

It gives you a cardiovascular risk score: an estimate of your risk of a heart attack or stroke over the next 10 years. NICE recommends the QRISK3 calculator for this, although QRISK2 may still be used until clinical systems are updated. QRISK3 includes ethnicity. In the published QRISK3 model (BMJ 2017;357:j2099), Black African and Black Caribbean ethnicity were associated with a lower calculated risk than White ethnicity once other factors, including blood pressure, were taken into account. Ask your GP to explain your score.

If your 10-year QRISK3 score is 10% or more, NICE NG238 recommends offering statin treatment for primary prevention, alongside lifestyle advice. Your GP will discuss whether it is right for you.

If you're aged 40 to 74 and eligible, you should be invited every 5 years. If you have not been invited, NHS.uk says contact your GP practice, or your local council if your practice does not offer NHS Health Checks.

2. A GP Appointment for Cardiovascular Risk

You do not need to be symptomatic. You can book an appointment and say: "I have a family history of stroke. My blood pressure has not been checked recently. I would like a cardiovascular risk assessment." That is a completely legitimate reason for an appointment.

The Modifiable Risk Factors You Can Act on Today

Blood pressure control is the most important, but it is not the only lever you have:

  • Smoking: NHS.uk advises quitting smoking to lower the risk of stroke. The NHS Stop Smoking Service is free. Medications and support are available through your GP.
  • Physical activity: NHS.uk advises adults to do at least 150 minutes of moderate intensity activity a week, and lists exercise among the things that lower stroke risk.
  • Salt: NHS.uk lists a diet high in salt among the things that increase your chance of high blood pressure. Cutting down does not mean giving up traditional food. It can mean changing how food is seasoned.
  • Alcohol: NHS.uk says drinking more than 14 units a week over many years can increase your risk of stroke.
  • Atrial fibrillation screening: NICE NG196 recommends an ECG if an irregular pulse is found, and longer heart-rhythm monitoring when atrial fibrillation that comes and goes is suspected. If your GP has never checked your heart rhythm, ask for it to be included in any cardiovascular review.

Five Things to Take Away From This Article

  1. Know your blood pressure. If you're 40 or over and have not had it checked for more than 5 years, or you think you might be at risk, get it checked (NHS.uk).
  2. Request an NHS Health Check if you are 40 to 74 and have not had one in five years. Ask for a QRISK score.
  3. If blood pressure is elevated, get it properly confirmed with ambulatory or home monitoring — and ask about treatment that aligns with NICE NG136 for your background and whether you have type 2 diabetes. Do not stop or switch tablets without your clinician.
  4. Address the modifiable factors: smoking, physical activity, diet, alcohol, and AF screening.
  5. Know FAST. Face drooping, arm weakness, speech difficulty — call 999. Every minute matters.

Watch the Full Video

A companion video is in production for The Educating GP YouTube channel. This article is the live written version.

Useful Links

References

This content is for general health education only. It does not replace individual medical advice. Always consult your own doctor for personal health decisions. This is independent educational commentary. It does not represent the NHS or any NHS employer.

Dr Kennedy Umege, UK GP (GMC 7592446; GP Register from 31 January 2023). MB BS 2004, University of Port Harcourt. UK-registered since August 2018. This article is independent educational commentary and does not represent NHS employers or organisations.

Get health evidence in your inbox

Clinical clarity. No spam. Unsubscribe any time.

Subscribe on Beehiiv

Get the free guide by signing up, or download the PDF directly.

Open Beehiiv signupDownload the guide PDFPreview the free guide

We use your email only to send the newsletter. See our Privacy Policy. We never sell your data. It is processed by our newsletter provider (Beehiiv) as described in our Privacy Policy. Unsubscribe at any time.

More from The Educating GP

Diabetes and EndocrinologyWhy South Asians Face Type 2 Diabetes Risk From a Younger Age: A UK GP Explains the Risk, the Science, and What to Do Now10 min readMental Health in Ethnic MinoritiesBlack People Are Nearly 4× More Likely to Be Detained Under the Mental Health Act in England: What the Data Show7 min readHealth Disparities AdvocacyMedical Gaslighting: When Doctors Dismiss Your Symptoms and What You Can Do About It10 min read