A reference tool reproducing the National Cerebral and Cardiovascular Center's Suita Score (LDL version with CKD). It scores age, sex, smoking, diabetes, blood pressure, LDL, HDL, and CKD into a 10-year reference figure. This result is not an individual probability of developing the disease.
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Calculation basis and official references
Reviewed on:
This calculator is not a diagnosis, treatment plan, or prescription. Please consult a qualified clinician about your medical decisions.
Formula basis
Age points (35-44=30, 45-54=38, 55-64=45, 65-69=51, 70+=53) plus -7 for female, 5 for current smoking, 6 for diabetes, blood pressure category (optimal=-7, normal/high-normal=0, stage 1 hypertension=4, stage 2+ hypertension=6), LDL category (five levels from under 100=0 to 180+=11), HDL category (under 40=0, 40-59=-5, 60+=-6), and CKD category (stage 1-2=0, stage 3=3, stage 4-5=14) are summed. The total score is then mapped to the published 10-year incidence probability table (35 or below = under 1%, above 71 = over 28%) from the original paper.
Calculation method
Estimates a 10-year coronary heart disease (e.g. myocardial infarction) incidence rate from a points-based score using age, sex, current smoking, diabetes, blood pressure category, LDL cholesterol category, HDL cholesterol category, and chronic kidney disease (CKD) stage.
Exclusions and checks required
This reproduces a simplified point-sheet version of the underlying Cox proportional-hazards statistical model; it does not guarantee an individual's exact incidence probability.
The underlying cohort was drawn from an urban population in Suita City, Osaka, which limits generalizability to other populations.
Current smoking is scored as 5 points, the value stated in the published point table. Implementations that use a different weight will not produce the same total score.
Blood pressure, LDL, and HDL are entered as categories, not raw measured values, so you must select the band that applies to you.
Example input:：Example: male, age 70+, current smoker, diabetes present, stage 2+ hypertension, LDL 180+, HDL under 40, CKD stage 4-5
age
70+
sex
Male
smoke
Present
diabetes
Present
bp
Stage 2+ hypertension (systolic 160+ or diastolic 100+)
ldl
180+
hdl
Under 40
ckd
Stage 4-5 (eGFR under 30)
The total of 95 points displays as a '10-year coronary heart disease figure of over 28%', but this is a population-statistics estimate from a point-based model; it is not a probability of you personally developing the disease.
Who is this calculator for? 10-Year Coronary Heart Disease Reference Risk
A reference tool reproducing the National Cerebral and Cardiovascular Center's Suita Score (LDL version with CKD). It scores age, sex, smoking, diabetes, blood pressure, LDL, HDL, and CKD into a 10-year reference figure. This result is not an individual probability of developing the disease.
What values should I enter?
Applies to: Risk reference
How should I interpret this estimate?
Estimates a 10-year coronary heart disease (e.g. myocardial infarction) incidence rate from a points-based score using age, sex, current smoking, diabetes, blood pressure category, LDL cholesterol category, HDL cholesterol category, and chronic kidney disease (CKD) stage.
How to use
Enter your input values and press Calculate.
Review the result and compare it with expected context.
Age points (35-44=30, 45-54=38, 55-64=45, 65-69=51, 70+=53) plus -7 for female, 5 for current smoking, 6 for diabetes, blood pressure category (optimal=-7, normal/high-normal=0, stage 1 hypertension=4, stage 2+ hypertension=6), LDL category (five levels from under 100=0 to 180+=11), HDL category (under 40=0, 40-59=-5, 60+=-6), and CKD category (stage 1-2=0, stage 3=3, stage 4-5=14) are summed. The total score is then mapped to the published 10-year incidence probability table (35 or below = under 1%, above 71 = over 28%) from the original paper.