AF episode duration
AF episodes without an attached episode duration available in the remote transmission were excluded. All remaining AF episodes were classified according to duration. Episodes occurring within a 24-h period were pooled to create a total duration of AF within 24 h. Pooled episodes were then re-classified into one of four pre-specified AF duration windows: (1) less than 6 min during a 24-h period (AF < 6 min), (2) at least 6 min, but less than 6 h during a 24-h period (AF 6 min–6 h), (3) at least 6 h but less than 24 h during a 24-h period (AF 6–24 h), and (4) 24 h or above (AF ≥ 24 h). Patients were then allocated to one of the four AF duration categories, according to their longest pooled episode duration.