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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: JACC Cardiovasc Imaging. 2017 Jul 25;11(2 Pt 1):221–230. doi: 10.1016/j.jcmg.2017.01.029

Table 3.

Number needed to screen for subclinical atherosclerosis among individuals eligible for trial-based statin therapy.

All (n=4085) Men (n=2156) Women (n=1929)
CAC=0, NNS 2.3 2.8 1.9
CAC >100 NNS 3.7 3.0 5.1
CAC=0 or CAC>100 NNS 1.4 1.4 1.4

NNS = Number needed to screen to identify 1 individual with the value(s) in question; CAC=coronary artery calcium score.