Aggregate QTca Interval

**Semantic type:** Quantitative Concept

**Definition:** The correction on the aggregate of QT intervals using individual probabilistic QT/RR slopes for each subject based on the measurement of QT intervals from multiple beats within a single ECG or from a defined time period within a continuous ECG. The method of aggregation, which can vary, is typically a measure of central tendency, such as mean.

**Synonyms:** - QTCAAG - QTCAAG - QTca Interval, Aggregate - QTca Interval, Aggregate - QTca Interval, Aggregate