Clinic appointment
Stockholm3 Prostate Cancer Risk Test
A blood test that combines protein markers, genetic markers and clinical details in an algorithm to estimate the risk of clinically significant prostate cancer.
- Doctor-reviewed results
- Laboratory analysis
- 10+ working days from lab receipt
- No fasting required
What’s included
Included tests listed below
Stockholm3 risk score
A single score that combines PSA and other protein markers in the blood, genetic markers and your clinical details to estimate the risk of clinically significant prostate cancer. It is a risk estimate, not a diagnosis, and no individual genetic result is reported.
Overview
PSA alone misses some serious prostate cancers and flags many harmless ones. Stockholm3 combines PSA with other protein markers, over a hundred genetic markers and your clinical details to estimate the risk of clinically significant prostate cancer. It is for men aged 45 to 74 who want a better-informed decision about MRI or biopsy.
It gives a risk score that can help a clinician decide whether further imaging or a biopsy is warranted. It does not tell anyone whether they have prostate cancer, and it is not a diagnosis.
Who this is for and who it isn’t
Who it’s for
- Men aged 45 to 74, the group it is validated for
- Men aged 45 to 74 with a PSA above 1.5 ng/ml, including a borderline result
- Men of Black African or Caribbean heritage, where risk is higher
Who it isn’t for
- It estimates risk. It is not a diagnosis, and a low score does not mean there is no cancer. It is designed for men aged 45 to 74 with a PSA above 1.5 ng/ml who have not been diagnosed with prostate cancer.
- If you do not know your PSA, the reflex version measures it first. If you take finasteride or dutasteride, tell us, because the calculation takes them into account. Results take longer than a standard blood test because the genetic analysis is run abroad.
- Anyone with a new, severe or worsening symptom: contact your GP or call NHS 111. A test you buy today is not a substitute for being examined.
Common reasons people choose this test
- A mildly raised or borderline PSA
- A family history of prostate cancer
- Black African or Caribbean heritage, where risk is higher
- Wanting more than a PSA number before deciding on further tests
- Aged 45 to 74 with a PSA above 1.5 ng/ml
These are reasons people choose to test, not signs that something is wrong. A result is one part of a picture your doctor puts together with your history and an examination.
What your result looks like
Every result is shown with the unit and the reference range exactly as the laboratory reported it, with the doctor’s note underneath.
- Stockholm3 risk score
- Result
- n/a
- Range
- on your report
| Marker | Result | Units | Range | Flag |
|---|---|---|---|---|
| Stockholm3 risk score | n/a | n/a | on your report | n/a |
Values above are examples. Your report shows your own results with the laboratory’s units and reference range for your age and sex, reviewed, signed and released by a GMC-registered doctor.
How it works
- You book your appointmentA trained clinician takes your sample at one of our London clinics. Nothing to do at home.
- The clinician takes your sampleA single clinic blood draw by a trained clinician
- The laboratory analyses itYour sample is processed for the measurements included in this test. Lab processing typically takes 10+ working days from receipt of your sample.
- A doctor reviews and releases itA GMC-registered doctor reads every result and signs the report before it reaches you.
- Sample
- Clinic blood draw
- Preparation
- No fasting required
- Who it's for
- Men · ages 45–74
How to prepare
What we can and can’t tell you
This is a risk score, not a diagnosis. A low score does not rule out prostate cancer and a high score does not mean cancer is present. It is validated only for men aged 45-74 with PSA above 1.5 ng/ml and no prior prostate cancer diagnosis, so it is not appropriate outside that group. A score above 11 indicates raised risk and warrants urologist referral for further investigation, not treatment. Genetic markers are used inside the algorithm but no germline result is reported back.
The reference range beside each result is the laboratory’s own. A result in range is not a clean bill of health and a result outside it is not a diagnosis. Most ranges cover about 95% of healthy people, so about 1 in 20 healthy people fall just outside any one range. No test result replaces an examination or your own doctor’s judgement, and none of these panels is a cancer screening programme.
Read the full note
Stockholm3 gives a risk score, not a result against a normal range. It is a risk estimate, never a diagnosis: a low score does not mean there is no prostate cancer, and a high score does not mean cancer is present. It is validated only for men aged 45 to 74 who have not been diagnosed with prostate cancer, and it says nothing about other prostate conditions or the rest of your health.
If you have symptoms such as difficulty passing urine, blood in your urine or semen, or bone pain, see your GP rather than waiting for a result.
Frequently asked questions
What does the result look like?
A risk score, with a category of low, normal or high risk. A score above 11 is the point at which further investigation, such as an MRI scan, is usually advised. The reviewing doctor explains what your score means for you.
Should I avoid anything beforehand?
Avoid ejaculation and vigorous cycling for 48 hours, and wait six weeks after a urine infection or a prostate procedure, as for any PSA-based test. If you take high-dose biotin (vitamin B7), tell us, because it can affect the analysis.
How is it different from PSA?
PSA is one protein. Stockholm3 adds four more proteins, a genetic risk score and your age, family history and previous biopsy history into one validated model.
How long do results take?
The laboratory typically takes 10+ working days from receiving your sample. This does not include kit delivery, sample collection or return postage. A doctor reviews your results before they are released.
Can I choose a home kit or a clinic?
This test is a clinic blood draw, as it needs a venous sample for accuracy. We arrange a convenient appointment for you.
Is a doctor involved?
Yes. Every result is reviewed by a GMC-registered doctor who signs it off and explains what it means and what to do next.
Is it confidential?
Your results are available through your secure patient portal. Our privacy policy explains how your information is handled and when it may be shared to provide your care.
What happens to my sample and results?
Stockholm3 combines protein markers, genetic markers and your clinical details. Part of the analysis, including the genetic markers, is carried out at a specialist laboratory abroad, which is why results take longer than a standard blood test. A GMC-registered doctor reads the result and signs the report before it is released to your secure portal. The report gives your risk score with the threshold used to guide whether an MRI scan or biopsy is advised, and the doctor's note explains what it means for you. A raised score is a reason to see your GP, who can refer you to a urologist. If a result needs urgent attention, the reviewing doctor is alerted straight away and we contact you by phone the same working day rather than leaving it in the portal for you to find.
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