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Relationship between heterogeneity of QTC interval and AERP
| Measurement | QTC* | AERP† | P value |
|---|---|---|---|
| Range, ms | 30 (19) | 107 ± 59 | 0.53 |
| Standard deviation, ms | 8 (6) | 45 ± 23 | 0.30 |
| Coefficient of variation | 1.9 (1.2) | 16 ± 8.7 | 0.33 |
AERP = atrial effective refractory period.
QTC measurements were non-normally distributed and presented as median (interquartile range).
AERP was normally distributed and presented as mean ± SD.
