Cardiovascular Risk Assessment in Primary Care: QRISK3, Statins & Beyond
A systematic approach to CVD prevention — who to screen, when to treat, and how to communicate risk
Cardiovascular disease remains the leading cause of death globally. QRISK3 is the validated tool for 10-year CVD risk estimation in UK primary care. This guide covers who to screen, how to interpret QRISK3, statin prescribing thresholds, and lifestyle interventions.
Clinical Decision Support: This article is for educational purposes and supports — not replaces — clinical judgment. Always verify with current national guidelines, BNF, and specialist consultation when needed.
Cardiovascular disease (CVD) — encompassing coronary heart disease, stroke, and peripheral arterial disease — remains the leading cause of premature death and disability in the UK and globally. Primary prevention through systematic risk assessment and targeted intervention is one of the highest-value activities in general practice. NICE CG181 provides the framework for CVD risk assessment and management in primary care.
Who to Screen and When
NICE recommends offering a CVD risk assessment to all adults aged 40–74 years who have not been diagnosed with CVD, as part of the NHS Health Check programme. Risk assessment should also be offered opportunistically to adults outside this age range who have risk factors (smoking, family history, obesity, hypertension, diabetes).
Do not use QRISK3 in patients with established CVD (coronary heart disease, stroke, TIA, PAD) — they are already at high risk and should be on secondary prevention therapy regardless of their calculated score.
QRISK3: What It Includes
QRISK3 is the most validated CVD risk calculator for UK primary care. It estimates the 10-year risk of a first cardiovascular event (heart attack or stroke) and includes over 20 variables, making it more accurate than older tools like Framingham.
- Age, sex, ethnicity
- Systolic BP and BP variability (last 5 readings)
- Total cholesterol:HDL ratio
- Smoking status (never/ex/light/moderate/heavy)
- BMI
- Family history of CVD in first-degree relative <60 years
- Deprivation (Townsend score)
- Type 1 and Type 2 diabetes
- Atrial fibrillation
- Systemic lupus erythematosus (SLE)
- Severe mental illness (schizophrenia, bipolar disorder)
- Erectile dysfunction
- Migraine
- Rheumatoid arthritis
- Chronic kidney disease (stage 3, 4, or 5)
- Systemic corticosteroid use
Statin Prescribing Thresholds
| Scenario | QRISK3 Threshold | Statin Recommendation |
|---|---|---|
| Primary prevention (no CVD) | ≥10% 10-year risk | Offer atorvastatin 20 mg OD |
| Type 1 diabetes (age ≥40 or >10 years duration) | N/A | Offer atorvastatin 20 mg OD |
| CKD (eGFR <60 or ACR ≥3) | N/A | Offer atorvastatin 20 mg OD |
| Secondary prevention (established CVD) | N/A | Atorvastatin 80 mg OD (high-intensity) |
| Familial hypercholesterolaemia | N/A | High-intensity statin; refer to lipid clinic |
Lipid Targets
- Primary prevention: Non-HDL cholesterol reduction of ≥40% from baseline
- Secondary prevention: LDL-C <2.0 mmol/L or non-HDL-C <2.6 mmol/L (NICE); LDL-C <1.4 mmol/L (ESC high-risk)
- Check fasting lipids at 3 months after starting statin; if target not achieved, consider increasing dose or adding ezetimibe
Communicating Risk to Patients
Communicating cardiovascular risk effectively is a clinical skill. Absolute risk (e.g., "10 in 100 chance of a heart attack or stroke in the next 10 years") is more meaningful to patients than relative risk ("50% higher risk than average"). Visual aids such as icon arrays (showing 10 red figures in 100) significantly improve patient understanding and shared decision-making.
Key Clinical Takeaways
- Screen all adults aged 40–74 years with QRISK3 as part of NHS Health Check
- Offer atorvastatin 20 mg OD if QRISK3 ≥10% (primary prevention)
- Secondary prevention: atorvastatin 80 mg OD regardless of baseline cholesterol
- QRISK3 includes 20+ variables — use the online calculator, not mental arithmetic
- Communicate absolute risk, not relative risk — use visual aids
- Lifestyle intervention first: smoking cessation, diet, exercise, weight loss