Data
82,787 items of data are available, covering 80,522 participants, encoded using Data-Coding
2526.
Defined-instances run from 0 to 1, labelled using Instancing
2.
2 Instances
Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
65,427 participants, 65,427 items
Instance 1 : First repeat assessment visit (2012-13)
17,360 participants, 17,360 items
Notes
At various points during the exercise test, called trends, readings such as heart rate were recorded. In this field, trend refers to heart rate values computed automatically during these trends using a proprietary algorithm in the software (Cardiosoft). Alternatively heart rate can be computed from the raw ECG, referred to in this field as ECG. In some exercise tests, only trend data was available. ECG data were chosen preferentially over trend data when both data sources were available.
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