Canadian Task Force on Preventive Health Care (current) | Use of FINDRISC or validated risk calculator (e.g., CANRISK) to calculate risk of diabetes at least every 3–5 years |
Recommend not routinely screening adults at low to moderate risk Recommend routinely screening adults at high risk every 3–5 years Recommend routine screening annually for adults at very high risk
| A1C ≥ 6.5% |
Canadian Task Force on Preventive Health Care (2005) (48) | No recommendation |
| Fasting plasma glucose |
Canadian Diabetes Association (4) | Annual assessment on the basis of demographic and clinical history |
Recommend routine screening every 3 years for adults starting at age 40 years Recommend earlier screening or more frequent screening, or both, among people with additional risk factors for diabetes
|
Fasting plasma glucose ≥ 7.0 mmol/L Casual plasma glucose ≥ 11.1 mmol/L + symptoms of diabetes 2-h plasma glucose in 75-g OGTT ≥ 11.1 mmol/L A1C ≥ 6.5%
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American Diabetes Association (49) | Measurement of BMI and ≥ 1 additional risk factor for diabetes |
Recommend routine screening every 3 years for adults starting at age 45 years Recommend routine screening every 3 years for adults who are overweight or obese and have 1 or more additional risk factor for diabetes
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US Preventive Services Task Force (50) | Blood pressure measurement |
Evidence insufficient to recommend screening for asymptomatic adults with blood pressure of 135/80 mm Hg or lower Recommend screening every 3 years for asymptomatic adults with sustained blood pressure (either treated or untreated) greater than 135/80 mm Hg
| (Same as for American Diabetes Association) |
UK National Institute for Health and Clinical Excellence (51) | Use of validated risk assessment tool or self-assessment questionnaire, or both; risk reassessed at least every 5 years if at low risk, at least every 3 years if at moderate risk, and at least every year if at high risk |
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