Ma et al reported a risk score for a patient with chest pain and suspected non-ST-segment elevation acute coronary syndrome. The authors are from The First Hospital of Qinhuangdao, Hebei Province in China.
(5) number of risk factors (hypertension, hypercholesterolemia, diabetes, family history of coronary artery disease, current smoking, BMI >= 30 kg per sq m)
(6) elevated serum high sensitivity troponin I
Parameter
Finding
Points
age
< 60 years
0
>= 60 years
1
sex
female
0
male
2
history of chest pain
slight suspicion
0
moderate suspicion
6
high suspicion
8
ECG
slight suspicion
0
moderate suspicion
2
high suspicion
5
number of risk factors
0 or 1
0
>= 2
1
elevated troponin
no
0
yes
7
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 24
• The higher the score the greater the risk of a major adverse cardiac event (MACE).
Score
Risk
Rate of MACE
0 to 4
low
1.4%
5 to 8
intermediate
18%
9 to 24
high
63%
Performance:
• The area under the ROC curve in a patient >= 65 years was 0.84.
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