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Prevalence of CAD ≥70% estimated by the risk score
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Number of patients with CAD ≥70%
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Number of patients with CAD <70%
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Number of events in patients with CAD ≥70% (AR = 13%)
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Number of events in patients with CAD <70% (AR = 2%)
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Excess of events in patients with CAD ≥70%
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Number needed to screen to identify one cardiovascular event
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|---|
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5%
|
5
|
95
|
0.65
|
1.90
|
−1.25
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N/A
|
|
10%
|
10
|
90
|
1.30
|
1.80
|
−0.50
|
N/A
|
|
15%
|
15
|
85
|
1.95
|
1.70
|
0.25
|
400
|
|
20%
|
20
|
80
|
2.60
|
1.60
|
1.00
|
100
|
|
25%
|
25
|
75
|
3.25
|
1.50
|
1.75
|
57
|
|
30%
|
30
|
70
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3.90
|
1.40
|
2.50
|
40
|
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35%
|
35
|
65
|
4.55
|
1.30
|
3.25
|
31
|
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40%
|
40
|
60
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5.20
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1.20
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4.00
|
25
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-
aBased on 100 coronary angiographies. CAD, coronary artery disease; N/A, not applicable; AR, absolute risk.
