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Fig. 4 —Plot shows percentage of follow-up Agatston score beyond
baseline coronary artery calcification (CAC)–adjusted repeatability
limit for 2,832 Multi-Ethnic Study of Atherosclerosis participants with
positive CAC scores at baseline. Samples are grouped into 3-month intervals.
Point shading and size reflect group size. Black indicates n
100; range, 129–483. Gray indicates n < 100; range,
3–43. Larger points indicate greater number of participants. Dashed line
represents overall proportion (36.4%) of detectable change.