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Basic characteristics for groups of parameters (N=10,318)a.
| Procedure | Parameters, n | Total missing values, n (%) |
| ECGb | 9 | 45,839 (49.36) |
| Echoc | 26 | 98,191 (36.60) |
| CMRd | 10 | 81,174 (78.67) |
aThe table shows aggregated statistics for several parameters obtained from the same procedure. The percentage for each procedure is obtained as follows: [Total missing values/(Parameter × N)] × 100.
bECG: electrocardiogram.
cEcho: echocardiogram.
dCMR: cardiovascular magnetic resonance.
