Table 1

Study data

(A) Distribution of noise in all atrial fibrillation (AF) episodes
Duration of noise
in AF episode
Number of episodesProportion of
all episodes
0%1827.3%
1–5%3654.5%
6–10%34.5%
11–15%57.6%
15–20%46.1%
(B) Proportion of correct RR intervals in AF episodes and the median duration of all corresponding AF episodes
Number of correct
RR intervals in the
episode (×1000)
Proportion of
all AF episodes
Median duration of AF episodes (min)
1–1.516.7%11.0
1.5–2.516.7%17.9
2.5–527.3%29.3
5–1015.2%58.2
>1024.2%269.0
  • Median rather than the mean, which can skew the result owing to a few exceptionally long AF episodes.