Nishimura et al reported scores for predicting the risk of coronary heart disease in an urban Japanese population. One score is based on serum LDL concentration while a second uses serum total cholesterol. The authors are from National Cerebral and Cardiovascular Center in Osaka, Keio University, Hyogo College of Medicine, and Japan Anti-Tuberculosis Association in Tokyo.
The Suita Study is similar to the Framingham studies based on urban residents living in Suita, part of Osaka, Japan.
Patient selection: age 30 to 79 years
Parameters:
(1) age in years
(2) sex
(3) smoking status
(4) diabetes mellitus
(5) blood pressure
(6) serum LDL cholesterol in mg/dL
(7) serum HDL cholesterol in mg/dL
(8) chronic kidney disease
Parameter
Finding
Points
age in years
30 to 34 years
0
35 to 44 years
30
45 to 54 years
38
55 to 64 years
45
65 to 69 years
51
>= 70 years
53
sex
male
0
female
-7
smoking stutus
current smoker
5
not current smoker
0
diabetes mellitus
no
0
yes
6
blood pressure
optimal
-7
normal or high normal
0
stage 1 hypertension
4
stage 2 hypertension
6
serum LDL cholesterol
< 100 mg/dL
0
100 to 139 mg/dL
5
140 to 159 mg/dL
7
160 to 179 mg/dL
10
>= 180 mg/dL
11
serum HDL cholesterol
< 40 mg/dL
0
40 to 59 mg/dL
-5
>= 60 mg/dL
-6
chronic kidney disease
eGFR > 60 mL/min
0
stage 3
3
stage 4 or 5
14
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: -20
• maximum score: 95
Total Score
10-Year Coronary Heart Disease
<= 35
< 1%
36 to 40
1%
41 to 45
2%
46 to 50
3%
51 to 55
5%
56 to 60
9%
61 to 65
14%
66 to 70
22%
>= 71
>28%
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