CANRISK is a screening tool, not a diagnosis. It estimates risk from self-reported answers and does not replace a blood test or a clinical assessment.
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CANRISK adds points across twelve questions covering age, sex, body size, lifestyle, medical history, family history, ethnicity and education. Each answer contributes a fixed number of points, set by the Public Health Agency of Canada from a validation study of over 6,000 Canadian adults who had blood tests.
Two sections work differently from a simple sum. Family history is capped: each close relative with diabetes — mother, father, a sibling, a child — adds 2 points, for at most 8, and having several affected siblings or children still counts once per category, not once per person. Ethnicity of your biological parents is not summed either — only the higher-scoring parent counts, up to 11 points, because risk does not double just because both parents share a background.
The total places you in one of three bands: low, moderate or high risk of prediabetes or undiagnosed type 2 diabetes.
Age 45–54 (7 points), female (0), height 165 cm and weight 63 kg give a BMI of 23.1 (0 points), waist 75 cm (0 points), daily walks (0), fruit and vegetables every day (0), no hypertension or high blood sugar (0), no relative with diabetes (0), white ethnicity for both parents (0), college diploma (0).
Total: 7 points — low risk.
Age 55–64 (13 points), male (6), height 178 cm and weight 88 kg give a BMI of 27.8 (4 points), waist 105 cm (6 points), no daily activity (1), fruit and vegetables not every day (2), high blood pressure (4), no prior high blood sugar (0), father diagnosed with diabetes (2), white ethnicity (0), secondary school diploma (1).
Total: 39 points — high risk. Worth discussing a blood glucose test with a health professional.
Below 21 is low risk: your risk of developing prediabetes or type 2 diabetes is fairly low, though a healthy lifestyle is always worth keeping.
21 to 32 is moderate risk. 33 and above is high risk — the Public Health Agency of Canada recommends discussing a blood glucose test with a health professional at that level.
No. It estimates risk from self-reported answers, the same way the paper version does. Only a blood test — fasting glucose, an oral glucose tolerance test or HbA1c — can diagnose prediabetes or diabetes.
Because the validation study behind CANRISK found real differences in diabetes risk between ethnic groups and between people with and without affected relatives, independent of weight or lifestyle. The point values reflect measured risk in that Canadian sample, not a judgment about any group.
The paper form is explicit about this: choose the higher-scoring answer between your mother and your father, and do not add them. Two parents sharing a higher-risk background do not double a person’s genetic risk, so summing would overstate it.
CANRISK is validated for adults aged 40 to 74. The Public Health Agency of Canada notes it can also be used for younger adults in higher-risk groups, but the score has not been validated outside 40–74 and should be read with that in mind.
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