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Table 2 Baseline right atrial (RA) parameters overall, in AF cases and those who did not develop AF

From: Association of right atrial structure with incident atrial fibrillation: a longitudinal cohort cardiovascular magnetic resonance study from the Multi-Ethnic Study of Atherosclerosis (MESA)

RA Parameter (mean ± SD)

Developed AF

(n = 368)

No AF

(n = 2779)

P-value

RA maximum volume indexed (mL/m2)

23.7 ± 9.2

22.4 ± 8.0

0.002

RA minimum volume indexed (mL/m2)

13.2 ± 6.7

12.1 ± 5.8

< 0.001

RA total EF %

44.8 ± 15.2

46.6 ± 15.1

0.02

RA global strain %

34.0 ± 17.3

36.2 ± 19.2

< 0.001

RA free-wall strain %

39.9 ± 22.7

42.3 ± 25.9

0.049

  1. Volume indexed to ml/m2 BSA
  2. EF emptying fraction, SD standard deviation, HR hazards ratio, CI confidence intervals
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