Electrocardiogram (10 seconds/20 minutes)
4 variables.
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ECG
Has a doctor ever performed an ECG on you (except surgical preparation or sport competitions)?
x0hf07ECG (age)
Do you remember in which year the ECG showed conspicuous findings for the first time? (age)
x0hf07bECG: Conspicuous findings
Where there conspicuous findings?
x0hf07cECG: Conspicuous findings elaborated (free text)
Which? (elaborated)
x0hf07d2