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. 2020 Nov;36(6):641–648. doi: 10.6515/ACS.202011_36(6).20200515A

Figure 1.

Figure 1

Cardiac screening flow chart. Through stage 1 cardiac screening, we found 110,431 children with suspected heart disease; through the stage 2 of cardiac screening, we referred 19,105 children to hospital for further examination. In stage 3, pediatric cardiologists in the pediatric cardiology center arranged comprehensive examinations such as chest X ray, electrocardiogram, echocardiogram and treadmill to confirm the diagnosis of heart disease (high risk SCD N = 685, other heart disease N = 14,517). The precision increased from 0.62% in stage 2 screening to 3.59% in stage 3 screening. ECG, electrocardiogram; PCG, phonocardiograph; SCD, sudden cardiac death.